A man was relaxing with his evening paper, when there was a knock on the door. He opened it, and saw nobody, so he closed the door and went back to his paper. There was another knock, so he opened the door again. This time, he looked down and saw a small snail.
"Mister, could you spare some change?" the snail said. The man picked up the snail, threw him into the bushes, and went back to reading.
A year later, there was another knock at the door. It was the snail.
"What'd you do that for?"