Little Johnny was sitting on a park bench and he was busily munching on a bag of candy bars, one after another.
After he had watched Little Johnny eat his sixth candy bar, an old man who had been observing him from the bench across from him walked over and said, “Son, you know that eating all that candy isn’t good for you. It will give you acne, rot your teeth and make you fat”.
Little Johnny replied to the old man, “My grandfather lived to be 107 years old”.
“Oh?” replied the old man, rather taken aback by his remark. “Did your grandfather eat six candy bars at a time then?”
“No” replied Little Johnny, “he minded his own business!!”
Image used under a Collective Commons License from: https://www.flickr.com/photos/stevendepolo/10558405404