I’m a moth

A man went to see his doctor. The doctor asked what was wrong.

“Doctor,” the man said, “I think I’m a moth.”

To this the doctor responded, “You think you’re a moth? Well, I don’t think you need a doctor. Sounds like what you need is a therapist.”

“Yeah,” said the patient. “I was on my way to see a therapist, but I came in here because I saw your light was on.”