Ace Rothstein: I'm just curious. I saw you shuffling your checks with your right hand. Can you do that with both hands?
Signaller: No.
Ace Rothstein: Can't do it with both hands?
Signaller: No, sir.
Ace Rothstein: Can you do it with your left hand?
Signaller: Well, I... I never tried.
Ace Rothstein: So you're a righty?
Signaller: Yeah.
[one of the guards repeatedly bangs the signaller's right hand with a hammer]
Ace Rothstein: Now you're gonna have to learn with your left hand.