Little Johnny was sitting on a park bench gorging himself with candy bars. An elderly man sat next to him and chided Johnny for being such a glutton: "Son, eating all of that candy will rot your teeth, make you fat, and give you acne".
Little Johnny replied "My grandfather lived to be 107 years old".
The elderly man asked him "Did your grandfather continually eat candy bars?"
"No" Little Johnny replied, "He minded his own fucking business!"