One of my major concerns when taking troops into combat was how the new guys would react. No one really knows what they will do or how they will react until they have been under fire that first time. That first time everyone processes differently. Had an uncle in Korea who in his first battle had human waves of Chinese coming at him and froze, only his First Sergeant kicking him and the butt and telling him to fight or die got him started, after that he was OK, surviving that conflict and returning home. Considering that first battle for him was as an Infantryman facing the Chinese attack over the Yalu River, surviving until armistice without being wounded was almost a miracle. No one is prepared for their first fight, but I have found that thinking yourself through what happens in these situations helps your mind to process during an actual encounter. Still in that initial encounter, most people either get angry and fight, freeze with the moral implications, or flee in panic. Anger is dangerous because it causes action without thought, freezing is the act of your mind not processing quickly, and fleeing in panic is again action without thought. I know I told both my boys this many times as they got ready for their first deployment, an angry enemy is an easy target, a thinking enemy is the most difficult, and that works in both directions. Don't let your emotions take over, use your mind to fight. Do not let fairness and/or honor enter your mind in terms of tactics, if they do your tactics suck and they will get your people killed. Be smart and be overwhelming. I love Coach Saban's football philosophy here, "Make the other guy want to quit."
I fully understand the need to protect one's family, and if it is just me and the Grandkids, they get to safety first. But I know myself well enough that I will not sit by and do nothing. And as I used to do this for a living, I have no problem showing others what needs to be done, or organizing a plan of attack. It really does not take much to stop these lone wolves, they do not expect resistance until the police arrive and they sure as heck are not expecting to be ambushed by any of the sheep. JMHO