A comedian, new to the profession, is looking for places to perform. He notices a sign outside of one place reading ''Entertainers wanted, see within," below which someone had written ''NO HYPNOTISTS!'' with a marker. He goes inside and inquires about the gig.
"You're not a hypnotist are you?''
"No'' the comedian says, ''Why do you ask?''
''Well, last week we had a hypnotist and he had at least twenty people up on stage. Just as he got them all under, he tripped over his microphone wire and shouted 'S**T'. We've been cleaning it up for days!''