Little Johnny was sitting on a park bench munching on one candy bar after another.
After the sixth 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, make you fat."
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, he minded his own business!"
Snails produce a colorless, sticky discharge that forms a protective carpet under them as they travel along. The discharge is so effective that they can crawl along the edge of a razor without cutting themselves.