I agree with this, but in this case it was clear this dumpy looking guy had no shot against Mr. Motorcycle, and so if Mr. Motorcycle knocked him out, he could've have faced legal penalties, I believe. I agree that the useless conversation was just that and they both seemed to have got their rocks off with such silliness. Like I said, from my observation, some military guys like to flaunt their status and provoke diminutive men. As in this case, if you go to some stolen valor videos on You Tube, instead of simply saying something like, "Sir, I take it from my observation that you are not a soldier, so, in respect to we soldiers, please don't wear our uniforms from now on." Following and barking and instigating mentally and socially inept or inebriated men is downright silly, and it's not like they are in the position to truly penalize such nuisances with fines or jail time or whatever.
That's my rational take on it, not my emotional one. In the town I work, one of the towns people refer to as "the hood", many people do not believe that traffic signs and lights mean anything. Walking into oncoming traffic "ain't no thing but a chicken wing", so on a daily basis, I have people walking in front of my oncoming car. Actually this goes on in every "hood" I've worked. Daily I fantasize about pulling over, because I am going slow enough (<30 mph), and then starting in with such unruly people or maybe bumping into them ever so slowly, so as to slightly injure them or to scare the living daylights out of them. It would feel very good. But, like... I can't do it if I want to remain safe and free.