Preach' didn't really specify the scenario - I kinda took it to be more "street tactics."
Situational awareness has to be
numeral uno.
Being aware of your surroundings has to be at the top for what ails you.
If you don't know what's happening (to you), you can't react correctly.
Although part of - training
then kicks in. & better yet than "dealing with it," many situations can be offset (for lack of a better current thought process) by a thorough understanding of what is happening to you & how to defuse it.
Trading a couple quick verbal barbs, accepting an "insult" & yup, even running away are sometimes a much better tactic than having to employ yer fave shooter.
Living is right up there with my favorite enhancers. Staying out of the legal system has to be a solid second choice.
Best bet though mentioned for a more static thing would be a trigger job. A 12 pound pull on a 3 pound gun can't help anything.