I know.
3 seconds sound clip from the Battlestar Galactica (1978) movie soundboard.
You can hear this line at 00:04:29 in the Blu-ray version of the movie.
Quote context
[...]
- Look, I'm a Warrior. I earned that. I want to prove that to him.
- I know, but this may not be the best time.
- It's a peace envoy! What possible trouble could there be?
- I know.
- Hey, Starbuck, what are you doing? We're going on patrol.
- Uh...
- He can't make it. Starbuck's not feeling well.
- Oh?
- Yeah, well, it's, um... I don't know.
[...]