A blind rabbit and a blind snake meet each other. Neither one remembers what kind of animal they are, so they decide to feel each other. The rabbit says, "You feel me first." The snake says okay, and he starts feeling the rabbit. He says, "Well, you have fur all over, and a little cotton tail, and two long ears, and big back feet..." The rabbit says, "I know! I'm a rabbit! Yippee!" Then the rabbit feels the snake. He says, "Okay, you're long and thin, and slimy all over, and there's a little forked tongue..." The snake says, "Oh no, I'm a lawyer."

Another good one
Emmy