A rich millionaire decides to throw a massive party for his
fiftieth birthday, so during this party he grabs the microphone
and he announces to his guests that down in the garden of his
mansion he has a swimming pool with two great white sharks & 500+
piranhas in it. "I will give anything they desire of mine, to the
man who swims across that pool."

So the party continues with no events in the pool, until
SUDDENLY, there is a great splash and all the guests of the party
run to the pool to see what has happened.

In the pool is a man and swimming as hard as he can, with fins
flashing out of the water and jaws snapping but this guy just
keeps on going. Just as the sharks are gaining on him the guy
reaches the end and gets out of the pool, tired and soaked.

The millionaire grabs the microphone and says, "I am a man of my
word, anything of mine I will give, my Ferraris, my house,
absolutely anything, for you are the bravest man I have ever
seen. So sir what will it be?" the millionaire asks.

The guy grabs the microphone and says, "Why don't we start with
the name of the idiot that pushed me in!"