Not that I mind having a clean roommate, but over the last five years my bladder has been trained that as soon as it gets home, it gets emptied. So as I walk the sidewalk from the driveway to the front steps, it starts to do the pee pee dance. Doesn't matter if I went at 4:59 before leaving work. When I get home, it demands attention.
When it gets denied, it's never a good thing.
Thank goodness for the spare potty in the basement.