Who's Obsess with Sex

A man goes to a psychiatrist, and tells him, "Doc, I think I have an obsession with sex."

The doctor agrees to examine him and begins by showing him various drawings. First the doctor draws a square and asks the man to identify it.

The man immediately says, "OMIGOSH!! Four people having sex!!!!".

Next the doctor draws a circle, at which the man gasps, and says, "One man having sex."

Thirdly, the doctor draws a triangle, which, of course, the patient identifies as, "two woman and one man having sex".

The doctor puts the drawings away and says to the patient, "Yes, I do believe that you have an obsession with sex."

To which the man replies, "ME????? YOU'RE the one drawing all the dirty pictures!"