My favorite psychiatric story

My favorite psychiatric story, is about a man who thought he was a dog. He had been seeing a psychiatrist for a number of years, and all of a sudden the psychiatrist didn't see him for a long time. The psychiatrist met his wife on the street and ask her how was her husband? She said, he's dead. The psychiatrist was shocked and ask what happened, she said he was sitting in the driveway licking his crotch and I backed the car over him.