A posse feels safe because it's big. They only make a big target. I can ride around and pick off a few. The rest of 'em will lose their guts, turn tail, break up, and go home.
10 seconds sound clip from the Johnny Guitar (1954) movie soundboard.
You can hear this line at 00:58:56.173 in the Blu-ray version of the movie.
Quote context
[...]
- I've got a hunch the posse will be dropping in on you before night.
- Same people who paid you a visit yesterday, only they won't be the same.
- You haven't told me a thing I don't know.
- I hired you for protection. I won't have any killing.
- What do you think they're coming to do to you? Make up your mind, to stay is to fight.
- I'm going to stay. I'm going to fight, but I won't kill.
- To fight, you've got to kill. I don't know any other way.
- You are gun crazy. You'll never be any different.
[...]