But don't you dare undermine what I'm trying to do here.

6 seconds sound clip from the Good Will Hunting movie soundboard.

You can hear this line at 01:44:00 in the Blu-ray version of the movie.

Quote context

[...]

- I don't know much, but I know that.

- This is a disaster, Sean.

- I brought you in here because I wanted you to help me with the boy. Not to run him out.

- I know what I'm doing with the boy.

- I don't care if you have a rapport with the boy! I don't care if you have a few laughs, even at my expense.

- But don't you dare undermine what I'm trying to do here.

- This boy is at a fragile point right now.

- I do understand. He is at a fragile point, okay? He's got problems.

- Well, what problems does he have? That he's better off as a janitor? That he's better off in jail? Better off hanging out with a bunch of retarded gorillas?

- Oh, why do you think he does that? Do you have any fuckin' clue why? Hmm?

[...]