A motorist had a flat tire in front of an insane asylum. He took the wheel off, but when he stood up he tipped over the hubcap containing the bolts, spilling them all down a sewer drain. A patient, looking through the fence, suggested that the man take one bolt from the remaining three wheels to hold the fourth wheel in place until he could get to a service station. The motorist thanked him profusely and said:
"I don't know why you are in that place." The patient said: "I'm in here for being crazy, not for being stupid." Well, fortunate: flat tire in front of an insane asylum.