A multi-millionaire throws a huge pool part at his mansion. He invites all his best friends, and their best friends. He also has a challenge. His huge pool is filled with sharks. So he makes the announcement. Anyone who can swim across this pool with the man-eating sharks, and arrive to the other side alive, can have anything in this house. My 2 million dollar Rolls. My house....anything you choose.

An hour goes by.......no challenger......

2nd hour goes by......no challenger.....people start leaving the pool area.

All of a sudden someone hears a splash in the pool and alerts everyone to approach the pool deck. There's a guy swimming so fast as the sharks gain on him, nipping at the toes and feet. He finally made it to the other side in safety and got out of the pool.

The millionaire, congratulates him and stands by his offer and asks the lad what he wanted, considering he was such a brave fellow to risk his life for a mere earthly reward. 

The guy replied by saying sure, I'll take your offer. Let's start by finding out who pushed me in.