I want to tell you something, Shelley. You have a big mouth

Williamson:
Now how did you know that contract was on my desk? Shelley Levene:
You're so full of shit. Williamson:
You robbed the office. Shelley Levene:
Sure! I robbed the office. Sure. Williamson:
What'd you do with the leads? You want to go in there? I tell him what I know, he's going to dig up something... You got an alibi last night? You better have one. What did you do with the leads? If you tell me what you did with the leads, we can talk. Shelley Levene:
I don't know what you are saying. Williamson:
If you tell me where the leads are, I won't turn you in. If you don't, I am going to tell the cop you stole them, Mitch and Murray will see that you go to jail. Believe me, they will. Now, What did you do with the leads? I'm walking in that door. You have five seconds to tell me, or you are going to jail. Shelley Levene:
I... Williamson:
I don't care. You understand? Where are the leads? All right. [Williamson goes to open the office door] Shelley Levene:
I sold them to Jerry Graff. Williamson:
How much did you get for them? How much did you get for them? Shelley Levene:
Five thousand. I kept half. Williamson:
Who kept the other half? Shelley Levene:
Do I have to tell you?... Moss. Williamson:
That was easy, wasn't it? Shelley Levene:
It was his idea. Williamson:
Was it? Shelley Levene:
I... I'm sure he got more than the five, actually. Williamson:
Uh-huh? Shelley Levene:
He told me my share was twenty-five. Williamson:
Mmm. Shelley Levene:
Okay, I... look: I'm going to make it worth your while. I am. I turned this thing around. I closed the old stuff, I can do it again. I'm the one's going to close 'em. I am! I am! 'Cause I turned this thing a- I can do that, I can do anyth... Last night, I'm going to tell you, I was ready to Do the Dutch. Moss gets me, "Do this, we'll get well..." Why not. Big fuckin' deal. I'm halfway hoping to get caught. To put me out of my... But it taught me something. What it taught me, that you've got to get out there. Big deal. So I wasn't cut out to be a thief. I was cut out to be a salesman. And now I'm back, and I got my balls back... and, you know, John, you have the advantage on me now. Whatever it takes to make it right, we'll make it right. We're going to make it right. Williamson:
I want to tell you something, Shelley. You have a big mouth