I read an interview with an obsessive-compulsive woman who said that before she went on medication, she spent eighteen hours a day cleaning her house. After vacuuming, she would go over the carpet with tape in order to pick up dirt she might have missed. When guests visited, she’d make a mental note of everything they touched and wipe it down the moment they left. She said she’d miss important events in order to stay home and clean her keys or her checkbook, which, how do you even do? As for keys, it would never occur to me that mine were dirty, though they probably are. Filthy, actually.