A man goes to see a psychiatrist. The psychiatrist draws a square on a piece of paper.
"What does that remind you of?" he asks the patient.
"Sex!" replies the man without hesitation.
The psychiatrist then draws a flower, a house, a cow, a ladder, a frying pan, and a bunch of keys.
Each picture reminds the man of sex.
Finally, the psychiatrist tells the patient, "You are a sex maniac."
"Me?" says the patient surprised. "You are the one drawing all those dirty pictures!"