I've seen Indians act like that.
5 seconds sound clip from the El Dorado (1966) movie soundboard.
You can hear this line at 01:09:27 in the Blu-ray version of the movie.
Quote context
[...]
- Just give me an hour. You can wait that long to die.
- Let's say I'm on your side, and this is no job for amateurs.
- They run down this street and turned left. Too many for one man to take after.
- I've seen Indians act like that.
- Well, I'm going down this side.
- I'm going down the other side.
- Well, remember, I didn't ask you.
- Come on, Bull, you follow me. Not too close, though.
- No, please don't turn around. It'd be better if no one sees me talking to you.
[...]