It’s rare for an adult to wet the bed but some people have mental traumas that cause this. It’s unfortunate but livable as long as they try to deal with it. But if they don’t it will generate a horrible situation for everybody else and make them one of the worst roommates ever.
“She had a bit of a bed wetting issue and I didn’t want to make her feel bad about it,” they wrote. “But she didn’t do or wear anything to stop it, and only washed her sheets once a week or so. She would just leave puddles of pee in her bed and toss the sheets in the washer at the end of the week.”