Lots of sage advice in this thread, but the tough part is remembering any of this when the poop is dispersed horizontally.
I think you really only need to remember a couple of things.
1. Your number one Option for Personal Security is a lifelong commitment to avoidance, deterrence, and de-escalation. After that, Semper Gumby! (USMC Rules For a Gunfight # 22)
2. Protect yourself until others arrive who can take over that job.
3. Do what you're told, how you're told, when you're told by competent authority (Cops or guy with bigger gun and better tactical situation)
Train, practice and stay alive . . . but don't forget to enjoy your life
Former HMCS(FMF)