A man was about to take the next plane to Denver when he saw a scale. He put in a quarter and the message that came said: 'You weigh 175 and you are on your way to Denver.' Puzzled, the man put in another quarter, and the same message came out.
Really curious, he went into the men's room, combed his hair in a different way, and changed his sport jacket. He returned and tested the machine with a third quarter.
This time the message was, 'You still weigh 175, and you just missed your plane to Denver.'