Think of this guy's past... And the fact he did a decent amount of time. Think of how he must have defended himself from getting rapped/robbed. So for someone to come at him like that, he just reacted to how he has been "conditioned".
+1
The jail system doesn't make people good.
It was a good idea with good intentions eons ago, but it never worked and now it's just where we send all the criminals.