A man walks out of a bar and sees a bum panhandling on the corner. The bum says, "Mister, can you spare a dollar?" The man thinks about the question for a bit and asks the bum, "If I give you a dollar, are you going to use it to buy liquor?" "No", says the bum. The man then asks the bum, "If I give you a dollar are you going to use it to gamble?" "No", says the bum. So the man says to the bum, "Do you mind coming home with me so I can show my wife what happens to someone who doesn't drink or gamble?"