Barry Kripke: All right, Hofstadter, here's all the proof you need.
Leonard: Great, thanks.
Barry Kripke: Just remember, once you take this envelope, there's no turning back.
Leonard: What if I look at it and decide not to use it?
Barry Kripke: I had not considered that. Got to hand it to you, you got a real talent for making things boring.
Leonard: Thanks.
Barry Kripke: Hey, look at that. You did it again.