Two drunken men were sitting on the top of the Empire State Building. The first man tells the second man that if he jumps off, he will be sucked back in on the tenth floor. Not believing, the second man tells him to prove it.
The first man jumps off and sure enough he gets sucked back in the tenth floor. After returning to the roof, he said, “Okay, now it’s your turn.” So, the second man jumped and fell to his death.
When the police arrived, they questioned the first man, “Now tell us what happened again, Superman?”