Cliff: So, uh, you're the guys with low self-esteem, huh? Yeah, well, luckily, I don't have that problem. But then again, how could l? What, with a cerebral cortex that's eight percent larger than the average human's. Don't look, you can't tell.
Derek: Excuse me, do you wear that mailman uniform every day?
Cliff: Yes, I do. And proudly.
Derek: Do you live with your mother?
Cliff: Well, uh... yeah. Yeah.
Derek: Hey, guys, it's Mr. X.
Frasier: Uh, gentlemen, let me show you the pool room. [chuckles] Quickly.
Derek: [quietly] That's the guy...
Frasier: Come along.
Derek: And that must be Mr. X's fat friend, Mr. Y, at the end of the bar!