If it isn't life threatening, don't bring deadly force into play. (draw) If it is life threatening, end the {expletive} threat right now. What if your weapon jams after that spurious warning shot? While you're trying to clear it you or some other innocent ends up gravely injured or dead. When it is life or death, you take no chances, period.
When it is life or death, you take no chances, period. . . .
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There are plenty of reasons to fire a warning shot. Showing a gun will usually stop the attacker if he is sane. The only time my weapon was uses it was only revealed in my belt, not even pulled out.
I have no desire to kill anyone who does not intend to kill or hurt me or can’t be persuaded to walk away instead of killing me or mine. While I practice two to center mass and one to the head if an aggressor stops after the first shot so will I. The truth is I believe that not only do I have to answer to the local law, I have to answer to my maker. I need to know I was more than legally justified, I need to be justified.