Oh, he understands that, Flack.
4 seconds sound clip from the The Big Trail (1930) movie soundboard.
You can hear this line at 00:19:08 in the Blu-ray version of the movie.
Quote context
[...]
- Yeah. Another thing, another thing...
- Am I supposed to be wet nurse to them woodenhead pilgrims a-crossin' the plains?
- The more that goes along, the better it is for them and you in case Indians jump ya.
- Make it clear to him that I'm wagon boss.
- Oh, he understands that, Flack.
- He seems to be a right pleasant cuss.
- He's a ruffian, but he's a real wagon boss.
- Must've done a big trade in wolf pelts this year.
[...]