When alcohol and substances were brought into these homes, disaster struck.

Making A Splash

"Brought alcohol after we told them we don't drink/are a dry house.. ok, minor enough, didn't make a big deal about it... but when they spilled all their red wine on our couch and hid it under a blanket, only for the wife to tell us via text after they left.... that really sucked."

– LesPaulOnceAndForAll

A Hot Mess

"Got a prostitute over. This was years ago when I lived in a share house. My room mate and a friend of his got drunk. My room mate eventually ended up going to bed and he told his friend to sleep on the couch rather than driving home."

"The next morning we woke up and discovered that he'd called up a prostitute. They had sex in the bathroom and left a godawful mess."

"It was a long time before he got invited over again."

– saugoof

Bathroom Paint Job

"My friend's new boyfriend - I'd never met him before - came over with her for dinner. There were 8 of us. He drank a lot. He went to the bathroom before dessert. About 5 minutes after he came back, he spoke to her and she said they needed to go as he wasn't feeling well. They left."

"When the next person went to the bathroom, they came back recoiling in horror. The new boyfriend had puked up his entire dinner - and a vast amount of red wine - all over the bathroom. Everywhere. Walls, floors, all over my full basket of spare toilet rolls."

I cleaned it up. When I next saw my friend, I mentioned it. We had a totally ordinary conversation about it. Later that day, she deleted me on FB and I never saw her again."

"Mystifying."

– ilovelucysfeet

Makeshift Urinal

"I had a birthday party for my friend at my apartment at the time. Another friend's husband ended up getting drunk and peeing in my hallway. I was like, 'wtf?' 'Well, the bathroom was full and I couldn't make it to a bush in time.'"

"So, the next time he came over, I gifted him a small potted plant with a handmade 'mens room' sign. Told him that now he has his own porta potty."

– michonne_impossible

Snot-Rag Fashion

"This one chick I used to be kinda friends with in middle school came over to my house. We were just sitting on my living room couch watching TV, when she just suddenly out of nowhere lifted the bottom of her shirt up and started blowing her nose into it. She did this like three or four times. I was like, c'mon now, we have tissues in the house and it didn't even occur to you to even ask for one? We're not anti-tissue extremists or anything. The image of that giant snot splotch all over the front of her shirt is seared into my retinas until the end of my days."

– PM_Me_PennyFarthings

Former Flat Earthers Explain What Finally Made Them Come Around | George Takei’s Oh Myyy

Please Don't Make Yourself At Home

Some guests act like they own the place. They need to be shown the door, by force, if necessary.

Sleep Requirement

"Rearranged all the furniture in the guest bedroom so that she could sleep facing north."

– Pythagorius

The Brown Stains

"My weird neighbour friend once came over for dinner when we were at least 11. I don't know why or how but when I prepared to go to bed that night I discovered poop on the wall at the top-bunk mattress (slept bottom). We also found it smeared on the wall of behind our TV."

"When we asked his mother she just handled it as if it was a totally normal thing to do."

– MoinGuy2

Laundry Time

"My roommate in college had been dating a guy a few years older for several months. She asked if I minded if he spent the weekend and that they'd only be home in the evenings since they had planned to be out and about experiencing the city. I said sure. Guy shows up and he's conversational and nice enough, except instead of an overnight bag, he brings at least 10 huge filled to the brim laundry bags of dirty clothes. He immediately sets up shop in our laundry room and goes to town. Literally does laundry all day and night.

My roommate is visibly upset at this point because dude doesn't want to go hang out as planned. He just wants to watch movies and do laundry. She apologizes and says they'll be out all the next day. No big deal. She wakes me up the next morning and is hysterical. The guy is gone and has taken all of our cleaning supplies and snacks with him. She never heard from again. It was super creepy and bizarre. She prob didn't even know this guys real name and never found out what his end game was. Unless his end game was simply use of a full size washer and dryer."

– Due-Time-8151

Unsolicited Makeover

"While we were at work, a couple that were houseguests for a few days rearranged our furniture and artwork."

"They wanted to surprise us when we returned home with their 'excellent taste in decorating.' They sure did!"

– Back2Bach

The Airborne Pervy Boy

"My cousin use to come over my house alot when I was a teenager. We're 7 months apart so we were pretty close growing up. When we 14/15 years old, he came over once with my aunties friends weird/ annoying son that he was forced to hang out with from time to time. It was 10am and I still had my pj's on, I tell my cousin I'll get dressed real quick and we'll go down the bike tracks soon. I go to my bedroom to change, when I'm in my underwear the weird/annoying boy walks straight in my room like he lived there and looked me up and down with a smile. I went mental, screamed at him and called him a creep. My cousin bolts upstairs after hearing me scream, grabbed the boy by the scruff of his clothes, drags him out of my bedroom and threw him down the stairs, he wasn't seriously hurt but definitely terrified at this point and runs out of the house."

– Nothing_Special1391

Weird Wanderer

"I had a friend over once and he just wandered around the house, no sitting, no greeting my mom, no nothing, he just walked around the house aimlessly, this was a year ago but it still confuses me to this day."

– SomeoneHadMyName9645

Missing The Target

"It was my cousin. He came in, took a sh*t in my bedroom (at the middle of the floor), and left. Im still wondering what came through his mind that day."

– knobblebot

No Complaints

"Last summer, my parents went on vacation so I was left alone to care for the house and our cat. One of my friends would come over a lot because I always made good food and she wanted to try it. One time when she came over, we ended up having coffee late at night, so she decided to clean my kitchen and bathroom at 12AM. Cleaned the sink, toilet, stove... I didn't ask her to. It was weird. But I didn't mind it."

– haihahfksknfjwhf

Pure Insanity

"Pissed in the fridge all over turkey left overs then b!tched the toilet wouldn't flush. His gf at the time then proceeded to beat the sh*t out of him for 'doing it again' with her prosthetic leg."

"Plot twist...I was the guest in their home."

– Syst0us

This Is Your Brain On Drugs

"My homeless, heroin addict, ex brother in law asked if he could do some laundry at my place and I agreed that would be ok as long as he understood this is my home and he's not welcome to hang around. (I have a teenage son I'd rather not expose to heroin, thank you.) One day he texted that he needed to pick up his laundry and I said no problem.""

"He never showed up, so I went to bed around midnight. Turns out after I went to bed, he let himself and his insane girlfriend in and they made themselves at home. Watching TV, taking a shower, eating snacks."

"I woke up to the sounds of a domestic taking place in my living room and a woman screaming for help."

"After dealing with all that and getting them removed from my property, I went to my bathroom where I found the entire bathroom covered in purple hair dye. It was on the floors, sink, the toilet, the mirror, the rugs. Every where!"

"Who comes into a house uninvited after midnight and dyes their hair?!"

"Don't do heroin kids."

– BooksAndGuns

Jam Session

"This guy turned my pots and pans into drums and started freestyle singing while all the girls were hitting chairs and harmonising. I never wanted people to leave my place so quickly before."

– whymyheadhurt

As I mentioned earlier, having a clean home starts with taking off your shoes after entering.

Growing up with this regimen made me appreciate cleanliness, but it also made me a certifiable germophobe.

So you can imagine how much I cringed when I read about the number of Redditors who've had guests who made their homes an open bathroom space – where excrement, vomit and urine splattered everywhere like in a Jackson Pollock painting.

The takeway? Be mindful of your alcohol intake, who you invite, and say no to drugs. Now, there's the door.