There are a thousand different scenes which made me laugh from the 180 episodes of Seinfeld, but I have one scene which I often linger upon and think about.
Kramer has finally decided that he doesn't need a mail-address. He's gone to the post office and basically tells the lady there....that's it. No more mail....just cancel me out....don't list me....don't deliver....just make me disappear.
From the rear door appears Newman. There is this 90-second dialog from Newman, trying to convince Kramer that you just can't do this. In effect, civilization will fail, society will collapse, and reality will undo itself.
It's one of those thought-provoking moments because most all of us over the past decade have reached a point where we have thought about cancelling out our mail address as well.