Raj: Cut the crap. We know where you were. We know what you were doing.
Stuart: Yeah, I just told you. I was at CVS breathing my ass off.
Sheldon: Oh, you were breathing, all right. You were breathing the rarefied air of celebrities.
Stuart: I don't know what you're talking about.
Raj: Then why are you trembling?
Stuart: I'm always trembling.