Agreed benjammin...
If those were real bangers, he would have been shot after he got a beatdown. It certainly looked like he said something (granted, they swiped his radio right out of his cart, so they started it). But when you are up against 15-20 punks and you aren't armed (even if you are) you think twice about what you do and say.
One of the wannabes will roll like a little girl on his friends and the ones who did the beating (especially the kickers and the belt swinger) will probably do some time, maybe several years if they have priors. Anyone without will likely get probation and maybe a few days in county. I say line every one of them up and let the old guy dish out his own justice! When his fist gets to hurting, he can use his boot.
Sadly, the wannabes who are actually tough will likely become real bangers in prison.
I hope you don't have this kinda trouble in NYC.
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Experience is a hard teacher because she gives the test first, the lesson afterwards.