The Doorman Season 6, Episode 18

Frank

What stain?

Kramer

Oh, you didn't notice? It has a pee-stain.

Frank

(disbelief) You had me sleeping on a pee-stained couch?

George

(light) No. No, no, no. The cushion was turned over.

Frank

(anger) But, the very idea. you had me lying in urine!!