What are your worst college roommate horror stories? [NSFW]

My randomly assigned roommate (we'll call them RM) started off normal. Had a long distance (creepy, old) boyfriend, seemed to be pretty nice, said she'd split on the toilet paper, you know, pretty normal. I was happy. That went downhill. Fast. She liked it warm so wanted us to turn the temperature up to 82F for her fish, because instead of telling me she wanted it warm she blamed me keeping it at 70-75 for the fish dying- she didn't clean its 1-gallon bowl often and tried to pet him and stuff. Okay, whatever, thats fine. Then she starts calling the boyfriend at 6-7am and talking in our shared room because "that's when he's free" even when I asked her to stop. Getting more annoyed but still fine. She started kicking me out to Skype her boyfriend and that was ok too because I didn't mind if it was rarely, just kind of wished she planned more. She broke up with said boyfriend and suddenly things went downhill, fast. Ironically, I was happy because she was going on a guy hiatus or some shit. But alas, she did not. I walked in on her countless times with new strangers in her bed. Awesome. When I walked in, was she embarrassed? Oh no. I was kicked out. I could stand this until one night... I was having friends over to bake cookies for another friend. As we were leaving to the kitchen RM asked if she could have a guy over for sex. As the cookie dough was made, and I'd walked in on her once today, I said no. Coming back to my room, surprise, I walk in on her again with my friends! We leave, and later come back. She has a curtain thing set up around her bed and dirty condoms on the floor. While we're back, the bed starts to shake and moaning increase. I repeatedly ask if they're having sex. Finally they kick us out after weird foreplay. I'm pissed and tell her. She acts apologetic and says it wont happen again. I'm kicked out like 5 more times. And then.... My family wit my precious little sister come to visit. I warn RM multiple times and plan a movie for my family when they come so she has time to bang. We still come back to moans. Sister, who was going to spend the night here, has to go to another room because she's scared. I ask for a roommate change, but this story isn't over yet. She keeps having guys sleep over without asking me, and when I ask her she denies it (but I've seen them so stop you compulsive liar just STOP). At roommate mediation she says she wants a roommate change because I "hold her to expectations [she] doest have for [me]" AKA I don't like being kicked out or her having sex while I'm there. Its important to note that my lovely boyfriend and I have never ever done this. RA sees the crazy and agrees to a change. She also claims she's out of toilet paper (she used maybe 3 rolls) and asks to use mine, when I've been supplying all the shared goods 99% of the time. But she doesn't realize I have just enough crazy to get her back. Now she has no toilet paper. I have more to say about this, but I'll wait till the roommate change is final.

/r/AskReddit Thread