I had a roommate in college who smelled like dirty feet all the time. She also managed to pee on the toilet seat almost every time she went. One of our other roommates called her out on it and from then on she was nasty to all of us (there were four girls total in our dorm room). This happened in October so we dealt with her constant "bad mood" from then until the end of April. Nice.

I currently live with my boyfriend, who's messy, and his son, who's the most disrespectful young man I've ever encountered, as well as a total pig (I posted on here about them both). I kind of consider his son a roommate, I guess. And his habits make the days of tinkle on the toilet seat seem like no big deal