One of my roommates was former sorority girl whose boyfriend spent four out of seven nights at our house because it was closer to his office. They would take up the shared bathroom for an hour at a time, leaving me on a couple mornings to wear my glasses to work because they were in the middle of a 45-minute post-coital shower (she was a good Catholic girl who had to scrub off the sin) and I couldn’t get my contacts. That lasted until the day I spent two hours in there. When we told her that he was going to have to pony up utilities money because he was there so often and our water consumption had doubled, she started spouting crocodile tears and a story about her grandmother dying. Then she decided to move out without telling us: We found out when people started calling about the For Rent ad in the paper. And then she decided not to move out. Four months later she moved out again without giving us more than two day’s notice. Also, she didn’t refill the toilet paper roll in the years she was there. Not once.