A Guy In A Mental Hospital

...had a toothbrush on a leash. For many months he called him Johnny. At every session his doctor would ask him what he has with him and every time he would say "my pet, Johnny".

Many session went by and everytime the same. However on a monday morning the unexpected happend. He told his doctor "this is a toothbrush on a leash." The doctor happy that he made progress signed his release form the very next day.

As the guy exited the mental hospital he looked back and said "We got him good, Johnny."