The prison cell scene when he meets them for the first time:
Vinny Gambini: [Vinny is the lawyer, but Stan thinks he is there to sodomize him] Look, it's either me or them. You're gettin' fricked one way or the other.
[Stan tries to get up]
Vinny Gambini: Hey, relax, I'm gonna help you.
Stan: Gee thanks.
Vinny Gambini: Excuse me, I think a modicum of gratitude would not be out of line here.
Stan: You think I should be grateful?
Vinny Gambini: Yeah, it's your ass, not mine. I think you should be grateful. I think you should be down on your frickin' knees.
Stan: I didn't know it was such an honor to get a visit from you.
Vinny Gambini: I'm doing a favor, you know. You're gettin' me for nothing, you little frick!
Stan: That's one hell of an ego you got.
Vinny Gambini: What the frick is your problem? I did not come down here just to get jerked off.
Stan: I'm not jerking you off. I'm not doing anything.
Vinny Gambini: That's it. You're on your own. I'll just take care of Sleeping Beauty.