Season 6, Episode 22: "The Diplomats Club"

-Okay, here it is. -All right, good.

Here's my collateral.

So it's a mailbag. So what?

Do you know whose mailbag that is?

David Berkowitz.

The worst mass murderer the post office ever produced.

-Where'd you get this? -I took over his route.

And, boy, were there a lot of dogs on that route.