Scariest quote in a movie?

For me it’s pretty easy, Joe Pesci threatening the banker in Casino.

“You know, I think you got the wrong impression about me. I think in all fairness, I should explain to you exactly what it is that I do. For instance tomorrow morning i’ll get up nice and early, take a walk down to the bank—walk in and see you. And if you don’t have my money for me i’ll crack your fucking head wide open in front of everybody in the bank. And just about the time i’m coming out of jail, hopefully, you’ll be coming out of your coma. And guess what? I’ll split your fucking head open again. Because i’m fucking stupid, that’s why. I don’t give a fuck about jail. That’s my business. That’s what I do. And we know what you do don’t we? You fuck people out of money and get away with it.”