A man walked into the office of the eminent psychiatrist Dr. Von Vermouth, and sat down to explain his problem.
"Well, you see, I've got this problem," the man began, "I keep hallucinating that I'm a dog. A large, white, hairy Pyrenees mountain dog. It's crazy. I don't know what to do!"
"A common canine complex," said the doctor soothingly. "Come over here and lie down on the couch."
"Oh no, Doctor. I'm not allowed up on the furniture."