I don't remember which it is, but David Sedaris wrote an essay about having ocd as a child. he talks about having to lick the lightswitch plates and tap himself on the forehead with his shoe.

I think my kitten has ocd. He is constantly licking things. And i am aware cats lick things as part of their nature, but it's things like the wall in the living room, the lining of my jacket and cardboard boxes. And legs. he loves to lick legs.

I also just watched him jump on and off f the back of the chair next to the computer 4 times before he ran away, stopping to lick the side of caitlin's ginormous rubbermaid storage trunk.

the cat's got problems.