A shy man becomes very sick and is taken to the hospital. The doctors conclude that his appendix needs to come out immediately. During his recovery he is given a number of pain medications, which have the side effect of uncontrollable diarrhea. When the man wakes up to find he has shit the bed he is incredibly embarrassed. Thinking quickly, he throws his sheets out the window to dispose of the evidence.
Meanwhile, on the street below a drunken wino is walking by. He is hit with the mass of sheets and spends the next 5 minutes flailing around with the sodden sheets before throwing them off. A shocked paramedic who witnessed the action runs up and asks the man what just happened.
“Dunno,” says the wino “but I think I just scared the shit out of a ghost!”