You gotta prove something, knocking around Vietnamese kids here?
4 seconds sound clip from the Good Morning, Vietnam movie soundboard.
You can hear this line at 00:37:47 in the Blu-ray version of the movie.
Quote context
[...]
- Shut up.
- Hey, hey, hey. Hey, hey, hey, come on now.
- You gotta prove something, knocking around Vietnamese kids here?
- This is a GI bar. We don't like gooks. We don't want him here. You just get him out.
- Everybody say gook, but it's all right.
- I gotta tell you something, you know.
[...]