Season 6, Episode 18: "The Doorman"

-The one with the Poppie stain? -Yeah, sure.

Then my father will have no place to sleep.

He's gotta move out.

But it's got a pee stain on it.

Well, the cushion's turned over.

-I guess. -Yeah.

You get a couch, I get rid of my father.

It couldn't be more perfect.