"holy crap, did you get the same creepy feeling from him I did?"

"A childhood friend of mine had this boyfriend that nobody liked. She ran off and eloped with him. He cheated on her a bunch and there was constant drama (my wife worked with her, and we were some of her few childhood friends still in the area so we were pretty close). Like, she'd come spend the night on our couch occasionally and stuff. An obviously unhealthy and likely abusive marriage."

"He seemed to mellow out when they had kids. At least there wasn't any more overt drama going on and we think he legitimately stopped cheating. He also got really religious. Something about this creeped my wife and me out and made us hate being around him even more than before. It's like when someone is pretending they're happy but you know it's not real."

"Like all the overt anger and drama transformed into something more subtle. On the surface he's turned over a new leaf and is becoming a better person, but it just seems off in a way we can't quite articulate. We tried to be happy for them and supportive, but once they weren't around it was like "holy crap, did you get the same creepy feeling from him I did?"

"Then one day he murdered her. Their kids were at a friend's house at the time. There was evidence that he'd been planning this for over a year. He's in prison for life now."

"We learned not to ignore any red flags or intuitive creeped-out feelings about people after this. Especially about people married to someone we care about."frumpy_teapot

Do Math not Meth....

"I was in high school with this dude who had a reputation for being very hyper and crazy. A lot of people didn't like him but he was not an outcast. For some reason he liked me, and would occasionally ask me to help him with math which I did."

"He later moved to another school and I didn't think of him much again. Until he showed up on the news for beheading a dog and carrying its head around in public. Turns out he had also held an autistic man hostage in his apartment and tortured him, all of this was done on a meth fueled rampage."asap-curry

James.

"Several years back, I used to work with a guy we'll call James. I never felt unsafe around him, but I don't think he was entirely there mentally. A few years after I quit working there, I ran into my old boss and was talking with him for a bit. Turns out, James had killed his wife, fled the scene, and barricaded himself in a barn. Police surrounded the barn, and he had no way of escaping. When police entered the barn, he pointed a gun at a officer, and the police opened fire on him, killing him. The gun he pointed at police didn't even have any bullets in it."thegreatestsnowman1

The Bully. 

"This one isn't as dramatic but still kinda freaky."

"When I was in high school (uk) there was this guy who just hated me. So damn much. I don't even know why. He was the definition of roadman and just made my life hell whenever he saw me with his bullying. But whatever. He was just a bully with a stupid perm. I could deal."

"Later on in year 10 he ended up getting arrested for attempted murder."

"Wonder if killing me ever crossed his mind."colespot

The Stalker. 

"When I was in high school/early uni, I had a stalker. We had briefly worked together at a restaurant and he asked me out at one point when I was fifteen and he was twenty. I turned him down and for the next six years he would pop up intermittently to harass me and my then-boyfriend. He would message me to say he was jerking off to my pictures then immediately apologize and tell me he had changed, or would message my ex to meet him somewhere so they could fight (my ex who, for the record, had never met him and did not ever go fight)."

"Last year, my stalker made the news for committing the first murder of 2019 in our city. I don't know the details, but according to the news he stabbed a friend and then fled, only to be caught soon after waiting for public transit (he was never the sharpest). My ex and I were broken up by that point and boy was that a weird way to reconnect after ~4 months of little contact. It still freaks me out to know that he was capable of murder and that it could have been me or my ex."brighteyeswhitelies

It was 1989....

"It was 1989, my dad was driving down a road late at night. He lived in Florida. As he was driving, he saw a woman on the side of the road trying to hitch hike. My dad, being kindhearted, slowed down to give her a ride."

"As he slowed down, he had a chill down his spine and had the worst feeling he ever felt. He did not pick up that woman."

"That woman was named Aileen Wournos. She killed a man on that road later in the day."

"My little brother exists today because my dad chose to not pick that woman up."Reddit

"I'm in the medical field. A few years ago I was on a forensic psychiatry rotation and went with the psychiatrist to do an assessment at the prison. There was a man there who had been convicted with undeniable evidence that he had brutally raped and murdered a woman. We were there to try to determine whether or not he qualified as a "Dangerous Offender" - in the Canadian legal system this means someone at very high risk of re-offending. In practice this meant we were trying to determine whether he qualified as "psychopathic" - meaning someone who does not experience empathy."

Probably a Psychopath.....

"So during the assessment he was friendly, extremely relaxed, casual, and even charming. When asked about specifics ofthe murder he would brush them off or just make very vague statements. At other times he would just smile or say things like "do you really think I could do something like that?" If I had just met him on the street he probably would have seemed like a very nice guy but being aware of his offense he came across as incredibly unnerving."

"TL:DR - met man who was probably a psychopath. He was charming and superficially a nice guy but somehow creepy and unsettling."OGilligan

A Little Different. 

"I went to school (elementary - high school) with a guy who showed up at his sister's apartment and brutally murdered her for seemingly no reason at all. I believe he stabbed her multiple times."

"In school he was always a little "different" but was always nice. I had even hung out with him on several occasions at my house, riding dirt bikes, etc. He was in the church youth group with me. He was really into punk music and heavy metal. I think he started smoking pot and drinking towards the end of high school. But that's all fairly normal. There was nothing about him that ever came across as someone who would one day snap and murder his closest family member."

"His sister was a very sweet girl. The saddest part was that her 20 month old son was asleep in his crib in the other room."

"Pretty sure he was the one that called the police and turned himself in."ExistentialCircus

A Bad Apple... 

"Many years ago I worked for a large corporation. I became friendly with a couple of the secretaries who were around my age and we would go out, have lunch, hang out on weekends occasionally. The one girl had tremendous self-confidence and was a go-getter and I really admired how unafraid she was to do anything. I wished I had only a tenth of her charisma and fearlessness."

"At least twenty-ish years go by and in that time social media, (FaceBook), became a thing and she was living a great life. She was successful at her corporate career and then changed careers and was also successful there. Got married, had children, big house, got divorced, but still seemed to be doing really well."

"One morning I'm watching the news and there's a story about a cop who was shot and killed by his (estranged) girlfriend and the guy was on his cell phone with his daughter when it happened. It was a headliner for a while however, it took a couple of days before I connected the dots and realized the woman who shot and killed her boyfriend, (the retired cop), was this girl from way back when whom I had admired and envied so much."purplesafehandle

Addiction. 

"I was an addict actively using in the area the Seminole Heights Serial killer was active in. I regularly popped into the McDonalds he worked at to use their ATM or bathroom, and one time he personally (with three other female employees) yelled at me to get out of their bathroom. It was less than 5 minutes from my drug dealers house and his MO at the time was to shoot randomly into cars. I regularly waited in mine 30+ minutes to pick up. He was caught and I saw it on the news while taking my meds at my rehab, told the nurses the whole story!" Emma_Stoneddd

Twizzlers. 

"There was a time when kidnappings were happening in my home country. I encountered one of the kidnappers at 6 years old, who, true to the stereotype, offered me candy. Lucky for me, the only candy that has ever and can ever entice me to be stupid is Twizzlers. Lucky for me, he only had Nerds and Starburst. I ran off and told him no thanks."

"He picked up another boy that night. He killed him. If he'd had Twizzlers, I'd have paused for at least more than the 15 seconds for him to close the distance. Would I have gone with him for a box? I don't know. Do I question my folks letting me walk home at 6? Kind of. It was 5 minutes from school and things were hard."

"I think about it all the time. That poor kid who probably liked Starburst."RealDegeneracy

Too Interested. 

"It was my biological dad's 30th birthday and we decided to throw him a surprise party and invited a bunch of people from his work. My brother and I were in our room playing on the Sega Genesis because it was all adults and we just wanted to stay out of their way. While we were playing together, a dude comes in and sits on our bed to watch us play. He said his name was Danny and asked us a bunch of weird questions. "Do you take the bus to school? How old are you? What's your favorite food?" He gave us a bad vibe and just seemed off somehow."

"Like he was TOO interested in what we were doing. My mom comes in and sees him in there with us and tells us to go watch movies in her room so my brother and I say goodbye and go to her room instead. A couple months later, my parents were watching the news and Danny is on the TV. He ended up being Daniel Conohan Jr, The Hog Trail Killer. He killed over a dozen homosexual men in our area and had tortured them and left them tied to trees in the woods to die."Vaaca_Del_Muerte

In Class.

"I took a class offered by my local municipality for unemployed young adults. They taught us Digital Marketing and basic web design, and at the end of the class, they were supposed to get us jobs. ANYWAY, a few weeks after that class finished, I saw one of the best students in that class on the TV, being held by police. He had killed his 2 yo by beating her to death for crying. I couldn't believe it! He was very calm and quiet and excelled at everything we did in that class. Never crossed my mind he would do something like that."aballofunicorns

Zodiac. 

"Not my own story but some family friends of ours had an experience with the zodiac killer. They were together in their car on lovers lane or whatever the spot was called where couples went to hook up. The wife got a weird feeling in her gut and begged the husband to leave. He was kind of upset because he was in town for one night from the military so this was their one night together. Finally she convinced him to leave. They told the only other couple at the spot that they were leaving because at the time the zodiac was known to be active so people kept an eye out for each other. Years later the zodiac wrote into the newspaper detailing one of his killings on lover lane."

"He described the exact car and said there were two couples left and he was going to take both out before one of the couples went up to the other and gave them a heads up before leaving. Right when they left he killed the couple that stayed. Every detail of the night from the date to the cars to the time of night matched up perfectly so they knew it was them who left just in time."jmill0420

Mum's Friend. 

"Years ago I went with my Mum to visit a friend of hers. Sat bored out of my mind while they sipped their tea cups and waffled on all afternoon. The friend's rather weird adult son, quite a bit older than me was also there in the house but didn't really engage much, I barely spoke more than a few polite sentences to him."

"My parents didn't tell me till years later but he started stalking me. They would hear all sorts of sounds at night. I had no idea, just carried on as usual. Biked to school, stayed after for gymnastics, biked to the pool for swimming, etc. I'm not sure how long it lasted."

"FFWD a few years, a young girl in our town went missing after school. A week or so later they found her body dumped. You guessed it, it wound up being the son of my Mums' friend. That's when they told me what had happened. Apparently my Mum finally caught him and a word was had with his parents."MamaBear4485

The Ex. 

"When I was a kid my mom was stalked by an ex who eventually killed her, his own 3-year-old daughter, and himself. I knew this guy for 1.5-2 years prior to the murders, but I remember the first time something really struck me as 'off' about him."

"I came home from school and found him in our house (he'd broken in, but I didn't know that at the time) going through things in my mom's bedroom. He was acting kind of manic, like he was ruffling through things but not actually doing anything particular and not looking or taking anything. He kept talking to me about how he thought of me as his daughter (news to me, we got along but weren't close) and blah blah emotional stuff. It was weird but he seemed volatile somehow, like he wasn't all there, so I just acted agreeable and started talking as normally as possible about the chores I needed to do before my mom got home from work and left him in the room alone. He left the house shortly after without another word."

"I told my mom about it when she got home, and she was pretty disturbed. Turns out she had just broken up with him (and taken back his key to our house) earlier that day and hadn't told me yet. We realized he had broken into the house (through the garage, iirc), and at a time when he knew I would be there alone."

"That was the beginning of nearly a year of stalking and several break-ins, eventually ending in him murdering her and his daughter before pulling the classic 'death by cop.' "SteamboatMcGee

Kyle. 

"When I was a kid back in the 80's, a friend of mine and his friend up around the corner from me were offered money by a guy to go up the field with him. I can't remember the specifics as it's along time ago and I was very young, but I think he offered him money to pick blackberries."

"My friend said no but the other boy said yes and went with him. His body was found the next day - he had been stabbed to death. He was only 8 years old. I remember the months that followed every parent was super weary about leaving any of us play on the streets."

"The kids name was Kyle Curran. It happened in Waterford, Ireland."throwaway57373662

A Spree.

"This isn't an exciting story, but I used to work at an on campus hotel for a Big 12 University. When classes weren't in session, the entire building would be locked down-- only the desk clerk could let you in or out."

"We had a spree killer stay with us for almost a week. I was interviewed by the police to see if I had any information that would help them. I said he used doors like a normal person." Barflyerdammit

The Phony. 

"My dad and step mom at the time allowed a guy to move in with them after he got out of prison for a non violent crime. At first, he seemed grateful to them and would help them out by doing chores or helping my dad in his shop. After being around awhile the guy seemed to like me and would flirt occasionally. He had this fake persona of a Christian trying to turn his life around and after awhile I caught on to his crap."

"After months of my parents treating him as one of their own, he left them with debts and moved out while they were at work one day. After hearing of this and other inappropriate things he said about me and our family in general, I'd had enough and took it upon myself to message him and tell him what exactly I thought and I did not mince words. Two months later, he shot a man at point blank range in the face and walked away as if nothing had happened. I still think about that from time to time and how lucky my family and I are."jadednicole

Neighbors. 

"A neighbor during my childhood was convicted over a triple murder. She had been in an argument with some people about a horse she owned. My sister had had sleep-overs with her daughter up until her dogs had killed and eaten another neighbors dog. Her partner, also convicted, intimidated the family who's dog was killed and my parents banned us from going to their house. One day they didn't live there anymore and soon after the murders came to light."AussieArlenBales

These were some very close calls!

Do you have similar experiences to share? Let us know in the comments below.