We've all had a fleeting moment where a shadow passes through the corner of our eye.

But by the time we turn around to look, it's gone.  Vanished.  We tell ourselves we were just imagining things.

But Reddit user KaikesPokeCards wanted to know who else has shared that experience:

What do you SWEAR you saw, but don't have any proof of?

Here are some of the answers.

Puppy Love

When I was 10 we had a 14 year old German Shepard who was getting very sick. I was home alone momentarily as my mom went to the neighbors to pick up a book or something. Our German Shepard came over, convinced me to walk outside with him and started licking my hands, looked at me, and ran away jumping the fence and he never came back. He was so loyal and good that to this day noone believes me and thinks he was stolen because he would never leave.

I'm almost certain he did that because he didn't want us to see him die and he wanted to go to the massive forest area and do his thing. I miss you buddy. 04NeverForget

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Blind Sight Is 20/20

I've had glasses since the third grade. I was playing tackle football with friends after school (I wasn't wearing glasses), tackled one of my friends, really big collision, for a second I regained full eyesight...then I blinked and it was gone again. klitchell

Special Guest Star

Sometime in the early 2000s my wife and I went to an Eminem concert at the House of Blues on Sunset in LA (yes I know they are tearing it down and it sucks, I saw a lot of great shows there, including his royal purple badness). Anyway the entire show, maybe 90 minutes, there was a guy dancing on stage in a full mummy suit and he is doing really awkward and funny dances that you wouldn't expect from a background dancer at a rap concert but hey he's in a mummy suit so whatever. The show ends and Eminem screams into the mic "Do y'all wanna know who the mutha f***in mummy is?" and the crowd cheers and he screams "Dustin mutha f***in Hoffman!" He pulls a zipper in the back of the costume and out comes an extremely sweaty 60something year old Dustin Hoffman and the crowd goes into a stunned silence for a few seconds and then erupts in cheers. My wife and I just kinda looked at each other in disbelief and when I tell people they always say something like oh it must have just been someone found that looked like him but that guy was Dustin mutha f***in Hoffman and no I have no proof.  steelear

Unexpected ESP

Not my story, but my brothers.

He lost his wallet and was retracing his steps looking for it. A homeless man approached him at a coffee shop and said to him

"Don't worry. It's in the bathroom sink. Your wallet is in your bathroom sink"

Later that night he did indeed find his wallet at home in the bathroom sink.

A few days later, he saw the same homeless man and thanked him for his help. The guy became really irritated and told my brother he had never seen him before.

Could have been a lucky guess, but I think Magical Bum makes for a better story. mgncapri

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Let Go And Crow

When I was about 10 years old I saw my old dog catch a crow out of the air then just gently release it. Hof354

Have You Seen This Boy?

When I was about 10 they started putting missing children on milk cartons. Every morning for a while I was looking at this boy's face on the side of the milk while I would eat my cereal. Then one day a car went down my street while I was playing outside, and there was a boy in the back seat with his face up close to the window looking out. I'm 99% sure it was the boy from the milk carton. I told my parents but they didn't believe me. fafa_flunky

Cuddle-fish

I was at the Shedd Aquarium in Chicago. I walked up to the cuttlefish tank, and for some reason all 20 or so of the cuttlefish rushed over to me. It was a big tank, maybe 10 feet long. I walked the length of it, and they followed me. I walked back, and they followed. A few other people saw and tried it themselves.

But alas, the cuttlefish only had eyes for me.

My best guess as to the cause was that the guy who feeds them is my doppelganger.  Drumlin

Phenomenon

Ball lightning. It was right after a thunderstorm passed by. I could see floating orbs in the sky. There were a couple of cars parked by an open field and people were watching this happen, so I parked and got out to join them.

We all sorta just looked on in silence until they winked out one by one. There was at least ten of them and they seemed to fly together in patterns. Sometimes they were fast, other times they slowed down or reversed direction. They seemed small, but I could tell this wasn't because they were far up in the sky. If I were to guess, they'd be about the size of a basketball, maybe a little larger.

The whole ordeal only lasted thirty minutes. We then all got in our cars and left. I tried taking pictures but it was dark and the lights were too faint to make out. I should recorded a video instead. I noticed someone was recording them at the scene so I had kinda hoped I'd see it online at some point. But it's been two years now so I guess not. Vadavim

Frozen

A chameleon escaped from a bag when my friend was giving it to me and it leapt into a big pile of snow. I looked around for it for a while but couldn't find it so I gave up. Several weeks later the snow all melted and I was out there and found the lizard partially frozen to the ground. I peeled him off and put it in one of those little plastic tanks and sat it by the radiator in my house. Within an hour or two the lizard was hopping around the cage like nothing ever happened. It lived for several years after that, and was known to my friend and I as Jesus the resurrection lizard. enslavedbyvegetables

Shelving Be Gone

My bathroom had a towel holder thing, which was a fastened bar parallel to the wall. It had started coming out of one of the holders and one day I accidentally pulled too hard on it. It came flying off and landed in a clatter, but I couldn't find it.

Mind you, this was a small bathroom, maybe fifteen feet by six feet in area and the counter and cabinets are seamlessly fastened to the wall. I checked in the bath, behind the toilet, under the towers -- nowhere.

To this day, I have no idea what the f**k happened to it. [deleted]

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Protector

Before my sister was born, my parents found a kitten. They decided to keep it, because they could find no owner. Named her Princess.

Anyway, my sister is 4 years older than I am. We both grew up with this cat. She'd sometimes follow us and watch over us. My parents used to make jokes about how she thought of us as her kittens.

Now, my sister wasn't very nice to me. It took a lot of people a lot of time to realise she wasn't just nasty; it was full on abuse and bullying. My sister is a narcissist, but that's not what you need to know. When I was too young to understand what was happening, I used to talk to Princess. She was like my version of a diary; I'd sit with this creature that was older than I was and tell her all my problems.

One day at a store, my mum told us she'd buy us each a lolly. My sister wanted a different one to me, and grabbed my arm and clawed her nails down it so hard it drew blood. Hurt a lot and I was really upset. When we got home I went and cried to Princess about how scared I'd felt. After a while I calmed down and went and played with my toys. Princess ambled out of the room. A few minutes later I heard a shriek and she ambled back in. Turns out she'd walked up and scratched my sisters hand, then hissed at her before coming back to sit with me, and watch over me playing with my toys.

My parents assume that my sister provoked her, but I know. She walked out of the room right after I'd been talking to her, and walked in right after the shriek. I can't prove it, but I think Princess saw how scared I was and showed me that she'd protect me. I've never told anybody about my white and grey guardian apart from my currant cat.

I haven't thought about Princess in a while. She lived to be between 19 and 21, depending on how old she was when my parents got her (she lived with them for 19 years; was around two when they found her). I loved that cat. Funnily enough, my new cat was originally my sisters. She got him, then left him with my parents, and he slowly became mine. He likes to sit with me more than he likes her. bolter_to_the_face

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Animal Crossing

I was out for a walk late one night. This was in rural Illinois, so there was nobody else out. I noticed from a distance that there where these squirrels just standing in the middle of the road. Thought to myself that this is strange. When I got closer I noticed there where three squirrels standing around a cat that was lying down. I thought for a minute the cat was dead, but when I got closer and walked passed them, the squirrels and cat followed me with their eyes, none of them moving a muscle. It was a look like, "Move it along nothing to see here." Still to this day I think of how bizarre that was. wdnsho

Squirrel Shaming

My dog spent the first couple of years of its life on the street. I'm sure he's eaten his fair share or squirrels. And he constantly barks at them/stalks them when he sees them in the yard or on walks.

One night I was working in my garage and my dog was in the backyard and I heard this ruckus, like he was fighting or chasing something, but then it turned into this "chit chit chit chit chit" sound so I walked out of the garage to see what was up.

My dog was hunched down really low, like he gets when he gets disciplined at for being bad, he had his head hung low and his tail between his legs, and there was a squirrel standing in front of him yelling at him. I swear to god, it was wagging its finger at him and everything. "Chit chit chit" reading him the riot act. When it saw me walking out of the garage, I swear it crossed its arms and scowled at me too like it new I was responsible for the dog's behavior. karmavorous

Honest Abe

I once saw a man in an Abraham Lincoln costume complete with top hat running for what seemed like his life along the street. I slowed down and when he turned to look at me he was missing an eye. I drove off and of course no one believes me. InvisibleDogLeash

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Seeing Things

As a child I touched some weird pest plant in our garden, I think it stung me. Then I saw everything in inverted colors for short time. And then back to normal. I was in such a shock, I couldn't explain it to my mom. I just went to her crying. Novacryy

Blue Valentine

When I was about 6, my entire family was helping to build my grandparents a new house. I was helping my dad move some really long 2x4s from the lumber pile when a mouse ran out from under the board I had moved (out in the middle of the woods, mice were no big deal to any of us.) I did a double take though because THE MOUSE WAS FREAKING BLUE. I don't mean the sun reflected off its fur and it had a blue sheen to it, I mean a brilliant, royal blue. He was running fast but I got my dad to notice it too and he agreed that the mouse really was royal freaking blue. We've told multiple people, my mom included, and no one believes us. But we know what we saw.  Totally_Not_Anna

A Cry In The Dark

When I was about 10 or 11 we were having a get together at gma's house for the holidays. All of us cousins played all day, and when night fell we played hide and seek. While the adults smoked and drank up by the house, we stayed on the back of the property just having a good time. I was hiding in between a bush and the property fence when I heard the strangest sound. It was almost a scream, both happy and miserable at the same time. I jumped up and kinda shouted. All my cousins heard it, and we all saw it, too. It was an animal on two legs, and it ran off with really jerky motions. Being the oldest by about three years, I calmed down the crying little ones and explained as best I could that it was just someone trying to scare us. I've had nightmares about that sound; in my mind it seems a grotesque mimicry of our joyous screams and laughter as we played. None of my cousins today will admit to even remembering the incident, although the adults remembered the commotion it caused. texasshorthorn

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Across The Universe

When I was 5 I woke up from my sleep and saw a man sitting on the stairs watching me. I wasn't scared though. There was something tranquil about it. I just watched him and he watched me for what seemed like 10 minutes. Then all of a sudden he was gone. A few days later I found out my dad was killed in Europe. I live in Canada and my parents were seperated. There's pictures of me with him when I was just born but he left shortly after that. To this day, that is the only memory that I have of my dad. A ghost watching over me. I don't believe in ghosts but I know what I saw. I've never told anyone before except my mom. hotdogwehaveaweiner

Offensive Cover-Ups

My friend and I were watching basketball in the early days that Charles Barkley was a panelist. He was apologizing for calling a team "midgets" and saying that he now knew it was offensive. But as they were going to commercial, we both heard him say over a hot mic "Besides, they shouldn't hate me, they should hate God."

My friend and I were amazed, and convinced he would be fired. But not only did we never hear about it again, the clip doesn't even exist online anywhere. It's as though we had a double delusion. phdcandidate

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Buffalo Buffalo Buffalo Buffalo Buffalo

My mom, dad and I were driving through rural Alabama late one night headed to see family for Christmas over 10 years ago. We were in a Ford Explorer. Mom was driving and Dad and I were sleeping. I woke up for a moment in the backseat just in time to see what looked like a buffalo dead in the road and then the Explorer went up and over as the dead buffalo and it scraped the undercarriage of the car. I asked my mom in my sleepy daze "was that a buffalo?" To which she replied "I don't know...I closed my eyes." 1234sc27

Cold Cut Welding

One time when I was really young, maybe like 10 years old, I came home after school and was making myself a salami sandwich. I pulled the bag of salami out and took out two slices. I smacked the two slices together, and suddenly they became one. I tried my hardest to separate them, but there was no seam or anything that I could split them up with. I even showed it to my mom but not a single person believed me when I told them. I had fused two pieces of salami together. bike_rack

Monkey Business

A monkey jumping from car to car on a busy street. I could probably draw a sketch of it even though this happened about 5 years ago. Definitely one of the most odd things I saw. Unfortunately everyone thinks I am telling a bad joke when I explain what I saw, or they just nod it off and continue not giving a fuck. NotSoOldSchool

Pudding Up

I'm in line at a cafeteria. The guy in front of me is holding a pudding cup. Someone walking by stumbles and falls into pudding cup guy, knocking his pudding cup out of his hand. While everyone is looking at stumbling guy, the pudding cup goes a good two feet straight up in the air. Pudding cup guy is totally focused and at the last second turns and catches the pudding cup behind his back. He looks at me, smiles and that was that. No one else saw it. shardcommondale

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Dances With Wolves

In 1994, on a farm in the southern Midwest US, five year old me had this huge yellow lab, sweetest dog in the world, who one day suddenly lost her shit barking and ran outside. Being 5, I followed her and watched her run out into the cow pasture (where the cows were suspiciously nowhere in sight) and went toe to toe with a fucking grey wolf.

That area at that time was definitely not wolf country. Coyote sure, but there is no way it was a coyote. Thing towered over my lab, and I'd seen plenty enough coyotes before to know that this thing was not that. My lab barked her damn head off right in his face, and after about a minute he tilted his head and then just turned around and disappeared into the woods. Found all the cows at the opposite end of the pasture circled around the two calves we had. They were never that terrified of coyotes, and they had no fear of domestic dogs (my lab literally climbed over them when they laid down and would tug on their tails - cows gave no fucks).

I will go to my damn grave saying it was a wolf I saw, but nobody believes me of course. I've spent years researching wolves and wolf hybrids but every picture I've seen of both the animal and the paw prints he left behind says it was very very very much more wolf than coyote or dog or even a mix. WolfGirl94

Crow Court

I saw a bunch of crows, around 20+, gather around in a circle. I was like wtf and took a closer look to see 3 other crows in the middle of the circle, all on their backs. And some crows from the circle would hop in and try to peck at the 3 crows, while they cawed and tried to defend themselves with their feet. I know crows are smart and all but didn't expect this level of social behavior. It went on for a while before a kid ran in and scattered them all. poopellar

Undrowned

In the 1990s, I was such an exercise freak. At least 4 hours a day walking and hillclimbing. I was getting cut off from current events, tv news etc.

One day I'm on my way home, around 3pm.I'm crossing the street in front of our local grocery store and there's this guy on the other side of the street. His hair is a mess, standing on end. His clothes are all over the place, not ripped, but disarranged. Like he walked out of a bomb blast but he cleaner. He's looking around, silently, clearly confused. Homeless people were really uncommon in my area then and tended to be couchsurfers rather than streetsleepers. He looked too well to be a street sleeper plus he didn't seem to have a clue where he was but he turned left and wander off the my left before I crossed the road.

That night, local news comes on. That afternoon a school teacher a couple of towns away had drowned. They flashed his picture up. It was the dude I saw. I'd swear to it. vrosej10

A Royal Coincidence

While I was playing poker with a few friends, I was dealing and somehow managed to deal a royal flush on the board, giving every person a royal flush. This was well into our game and the cards were definitely well shuffled, and don't forget I'd also placed the burn cards down. The odds of this are so astronomical that, apart from the friends I was playing with, no one would believe it happened and would assume I'm just a liar. Dotman_95

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Unprecedented Coordination

I was at the airport and saw a businessman with a carry on wheely bag get off the escalator.

He turned the corner, broke into a sprint carrying the bag by it's small strap handle on top.
He swung the bag forward and let go of the strap handle. While it was in mid-air he grabbed the currently unextended extending handle, pressed the button and on the back swing extended the handle and landed it on its wheels and continued sprinting, all without breaking stride. WildxYak

UFO

I was out, stargazing by myself. I remember a thunderstorm was off in the distance, and it was a moonless night so there was quite a show.

I noticed a satellite hauling across the sky...then it turned 90 degrees. Not gradually, like turned on a f*****g dime. Did it 3 more times before dashing completely across the horizon in about 6 seconds.

I have no logical explanation of what I saw. I had been sober and drug free for about 7 years when I saw this, and to my knowledge nothing man made had that kind of maneuverability or sudden. Heat of speed. k0uch

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Mandrill Shenanigans

Late to the party, but I'll post my story. When I was about 7 or 8, I was at my grandmother's house in WV to spend the night, along with my brother and sister. It was Friday night and we were watching old school TGIF. There was a knock on the door and I jumped up to answer it (my grandma was in her bedroom and didn't hear it. I wasn't supposed to answer the door by myself, but I really liked to do it).

I opened the door and no one was there. I stepped out and looked to the left and right. To the right, beside the door, my grandma kept a small table. Sitting on that table was a Mandrill. One of those primates like Rafiki from the Lion King. I don't remember it moving, I just saw it sitting there staring at me.

I freaked out and slammed the door. My grandma came running out and I told her there was a monkey outside. She ran out my brother and sister ran to the door to see the monkey. I'll never forget when I ran out and that table was empty. My grandma told me I shouldn't tell tall tales and not to open the door when she wasn't around.

That's been over 20 years ago and my brother and sister still make fun of my for "seeing a monkey." I've done google searches about Mandrills escaped from the zoo in rural West Virginia, but no such luck. It is still so clear in my mind I am sure it was there, though. Brenvol