Little Johnny was sitting on a park bench munching on one candy bar after another. After the 6th one, a man on the bench across from him said, "Son, you know eating all that candy isn't good for you. It will give you acne, rot your teeth, and make you fat."
Little Johnny replied, "My grandfather lived to be 107 years old."
"Oh?", replied the man. "Did your grandfather eat 6 candy bars at a time?"
"No", replied Little Johnny, "he minded his own fucking business!!"