Ba-duh-bang

[Steve]

Late one night, a man walks into a dentist's office.

Man: "Excuse me, can you help me? I keep thinking I'm a moth!"

Dentist: "You don't need a dentist. You need a psychiatrist."

Man: "Yes, I know."

Dentist: "So why did you come in here?"

Man: "Well...the light was on..."