Little Johnny was sitting on a park bench, gobbling one candy bar after another.
   After the fifth one, an elderly man on the bench across from him said, "Son, don't 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, "You know, mister, my grandfather lived to be 107 years old."
   "Oh?" replied the man. "And did your grandfather eat five candy bars at a time?"
   "No" replied Little Johnny, "but he minded his own f**kin' business."