The Junk Mail Season 9, Episode 5

Newman

(seeing postal security officials walking towards Kramer) Quick! Get in!

Kramer

Oh, no, no, no. That's exactly how you said it was going down.

Newman

There's another way it can go down, and it's going down right now!

Kramer

No. You said a mailman I know, and you're a mailman I know!

Newman

I know you know, but you don't know what I know.