Little Johnny was sitting on a park bench eating 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.”
Without even glancing up at the man, Little Johnny replied, “My grandfather lived to be 107 years old.”
The man asked, “Did your grandfather eat 6 candy bars at a time?”
Little Johnny answered, “No, but he knew when to mind his own fucking business.”