Frank Costello: I got this rat, this gnawing, cheese eating fuckin' rat and it brings up questions... You know, see, Bill, like you're the new guy. Girlfriend... Why don't you stay in the bar that night I got your numbers. Social Security numbers. Everybody's fuckin' numbers.
Billy Costigan: Is there something that you just wanna go ahead and ask me? 'Cause I'll give you the fuckin' answer, all right? Frank, look at me. Look at me. I'm not the fuckin' rat. Okay? I'm not the fuckin' rat.