Still one of my favorite articles on this topic:
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…. When you pull and use a gun, you are gambling literally everything you have on getting it right during the event and being legally justified afterward. You are gambling your physical life. You are betting your job, your home, and every penny you have in the bank. At risk is your marriage, your ability to share a bed with the person you love, and your ability to watch your children grow up in person instead of from jail. You place on the table every friendship you’ve ever made, every dollar you’ve ever earned or will earn, and your family’s future happiness. You are risking sleep disturbances, flashbacks, nightmares, impotence, anorexia, alcoholism, drug reliance, and a long and bitter lifetime of regret if you get it wrong. That is the gamble you take when you use a firearm against another human being.
To take a gamble that big, it’s a good idea to be overwhelmingly certain there’s no other way out.
https://www.corneredcat.com/article/...of-a-stranger/