"A boy hears a knocking at the door, he opens it, he looks left, he looks right, he looks up and down, and sees a snail. He throws the snail into the yard about fifty feet. Thirty years later the man hears a knocking at the door, he goes to the door, looks up, looks right, looks up, and then sees a snail at the door step. The snail says "What the heck was that for.""
