and 90% of the time, you dont have to, IF you get your pistol out and ON the guy, in time for him to notice it and stop. EVERY shot you fire, you are legally responsible for, even if it RICHOCHETS before it hits an innocent. There probably WILL be witnesses, who may well LIE about what happened, ya know, or at least be mistaken about who did what, in what SEQUENCE. Only morons 'think" that it will be only "their story vs a chalk outline'. It will cost you $30,000,minimum, to defend even a "righteous' shooting, in most jurisdictions, and it can EASILY be 3x that, and go on for years, with your wife getting threatening calls, your kids being harassed, lose of your business or your job, etc, etc, etc. You pull a gun, the guy STOPS his attack, and you fire ANYWAY, you are an idiot.