A man went to his boss's costume party with nothing on but a young naked woman on his back.
"So what the hell are you supposed to be?" the boss asked.
"I'm a snail." The man replied.
"What a load of crap!" his boss spat. "How can you be a snail when all you've got is that young naked woman on your back?"
"You've got it wrong," the man replied. "That's Michelle."