A man sits down on a park bench...

and sitting next to him is a small boy eating chocolate bar after chocolate bar. The man turns to him and says, "It's probably not that healthy to eat so much chocolate." The boy stares at the man and eats another piece of chocolate. After swallowing, the boy says, "My grandfather lived to be 110 years old." The man asks, "How did he do that? Did he eat a lot of chocolate too?" The boy replies with, "No, he minded his own fucking business."