Some people know how to defend themselves without trying to seriously harm someone else. That's how you can tell the difference. Those two "tough" guys were probably hoping they could take that guy and brutally stomp him. He did what he needed to do to protect his girl from those douche bags and then walk away. At least they were smart enough to not try anything else. Thats when you are dealing with a true moron. Someone who gets up and asks for another beatdown to try and "justify" the beating they just received.
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