Quote from Rachel in The One with the Truth About London
Rachel: Well, hey, I got a ton of these. You take a quarter and you blacken the edge, right? And then you say, "I bet you can't roll this quarter from your forehead to your chin without it leaving your face." And when they do it, they're left with a big, black pencil line right down the center of their face. Ben: Can I do it to you? Rachel: Yeah, I'm funny, Ben, but I'm not stupid.