I quite agree!
2 seconds sound clip from the She Wore a Yellow Ribbon movie soundboard.
You can hear this line at 00:56:42.311 in the Blu-ray version of the movie.
Quote context
[...]
- You've been green-eyed ever since she put on that yellow ribbon.
- Button up that shirt, mister!
- You can sneer all you want to, but you keep your paws off my girl.
- All right, mister, I'll accommodate you.
- Let's step over to the corral.
- Button your shirt, Mr. Pennell!
- I thought better of you. Four years out here and still acting like a wet-eared cadet on the Hudson.
- What is this all about, Mr. Cohill?
- Sir, I... I decline to answer. Respectfully.
[...]