You haven't the slightest clue what you're going on about, now do you?
You've never owned a weapon or had any weapons training....and IF you had, you slept through it and should never be allowed to own a weapon.
There is no such thing as a "warning shot". That's Hollywood bullshit. You pull that weapon, you aim, fire, and shoot to kill. Period. You want to try and guess whether your attacker is armed in a split second? Be my guest. You'll be a corpse.
Don’t carry a gun unless you are absolutely prepared to use it. If you do draw down on someone, you had better have no doubts that you can pull the trigger. If you do pull the trigger, empty the gun. That’s what I was taught.