The man looked down and saw a snail sitting on his porch. He said, "What do you want?"

The snail said, "Could you lend me 10 bucks?"

The man yelled, "get out of here!" and then kicked him off the porch.

About a year later the man hears a tapping on his door again. He goes out to see who it is. He looks around and he finally heard a tiny voice say, "What did you do that for?"