One day a father shark decided it was time to teach his son how to hunt humans. They got close to a beach so the father could set an example.
"Stay here and watch what I do son," said the father shark. So the father shark went up to a man swimming in the ocean, and started swimming in circles around him. He kept this up for about 10 minutes before he attacked. The father shark went back to the son.
"I think I could do it dad, but why do you have to circle him for sooo long?"
"Well son, I don't know about you, but I don't like the taste of shit."