Did you hear about the butcher who backed into a meat grinder? He got a little behind in his work. A man goes to his mate's fancy dress party with nothing but a naked girl on his back. "So what on earth are you supposed to be?" the host asks. "I'm a snail." The man replies. "What a load of rubbish!" spits his host. "How can you be a snail when all you've got is that naked girl on your back?" "That's not any naked girl, mate," the bloke replies, "that's Michelle."