Rohrschach:
Guy at the psychiatrist, getting tested. The doctor shows him Rohrschach images and asked him to describe what he sees in them.
With every one, the guy says: "Naked woman with her legs spread"
This goes on for a while, then finally the doctor says: "it is quite obvious that you are a pervert!"
Says the guy: "me a pervert? it is you that is showing me all these perverted pictures!"
Heh, I know, it happens to me every time!