They're only showing off. Leave them be.
5 seconds sound clip from the Sleeping Fist (1979) movie soundboard.
You can hear this line at 00:46:44 in the DVD version of the movie.
Quote context
[...]
- Manager!
- Yes, sir, coming, coming. Yes, yes, sir.
- Yes, sir, now what can I do for you, sirs?
- You deaf or something? We just told you! Son-of-a-bitch!
- My friend, they're troublemakers. They need a good lesson, all right? Just watch me give it to 'em.
- They're only showing off. Leave them be.
- What's the matter, you afraid of them?
- Huh? You bastard, what'd you say?
- I said my friend said you'll get kicked.
- Did you tell him to say that to us?
[...]