I read that in the Eighties. His focus to me was 1. Make sure you really should be shooting if you have to and 2. stay out of jail if you have to shoot. He's the real deal.
I carry anyplace it is legal. In advance I have gone over scenarios of when I must use lethal force and thankfully this has never happened.
It is very easy to think these things out in detail but when the adrenaline is pumping you become narrow focused in a fight or flight syndrome. The absolute best scenario is you do not need to pull your weapon. Talk your way out of it if possible. Actually just walk away if you can. That confuses bad guys unless they are intent on causing you harm. If none of this works and you are in mortal fear of your life, kill the threat, call the cops and call your lawyer and say two things, “I was in fear of my life and will cooperate fully when my lawyer is present.” Then shut up!
Actually if you are trying to flee and they agress you in most states (I love my Texas) you are home free if you use deadly force. If it is in your home in Texas, you own their ass and the cops will be pleased.