It's all right.
Let him think he's busting some drug dealers' heads on some street corner only to find he's blundered into a sting operation a couple times. It may be that that after everything gets sorted out they'll let him go, no harm, no foul, no jail--but times being what they are I very much doubt it.
Let him come upon what looks like a guy beating up on a woman and haul right off, assuming (Because he was not there to see the situation begin) that it's an attempted rape or somesuch, only to find it's the opposite and she was the initial aggressor(and don't think for a minute this has never happened). Better yet, let him find out he's just butted in on a domestic dispute and now gets to fight BOTH parties(like CLOCKWORK--you break up the one, the other always jumps in, ask any cop). Hell, who knows, maybe he WON'T get killed, or hospitalized, Hell, maybe he'll even take 'em both--and maybe he won't be sued, or arrested, or charged, or jailed. Yeah. Right. Sure.
Let him find those things out himself--by the tone of his posts since he joined us, I believe he is, and tries his hardest to be, a good person, but at this point he's just that sure of himself that that's about what it will take before he'll figure out that in order for a person to have the necessary info to make the judgment call whether or not to intervene in a situation, that person must KNOW what the situation is and MUST have been there to see it begin.
If you have that info, by all means do what you are able.
Absent that info, you can call whoever you like, shout, draw attention, but from a physical, intervention standpoint the only right you have to do a damnthing is if it becomes clearly obvious to you that whoever you called will not arrive in time, and if you don't, someone *is* going to die.
This is nothing to do with being some fictional "true martial artist" and everything to do with having to live in and deal with real life, in the real world, where real people get really ****ed over for having tried to do the right thing.
It would be wonderful if every once in awhile a good deed would go unpunished.
It would be wonderful if what some see as a moral obligation were not a guaranteed legal deathtrap.
It would be wonderful if being "in the right" were a bulletproof vest or an unbeatable attorney.
But that's not real life.
And it's like I said in my earlier post, until you change the societal conditions which LED to this being the "real world"--which led to the "it's not my problem" thinking, which led to the good being punished and the predators freed, until you do that, this entire argument is pie-in-the-sky pipe dreaming. Sorry.