Listening Help [AmE]
In an American movie, Keanu Reeves and Al Pacino are confronted by a punk on the subway. Al Pachino tells the punk that he'd better to check on his girl, because she is cheating on him.
Reeves: What did you say to him?
Pachino: I told him that if he didn't leave us alone, you were going to kick his ass. ???. Look at that, there's a lady getting up...
Could you, please, help me make out the missing part?