Something I like about that scene is Seinfeld (the actor) clearly struggles not to smile at Kramer's delivery of the punch line despite that he (the character) was supposed to be irate with Kramer.

Heh. Well, Kramer himself...was often less amused...

Thread/video: https://old.reddit.com/r/television/comments/7lvvg5/michael_...

Probably that's why it feels like half the actual episode takes were like that, because they couldn't keep from breaking!