Yes, theoretically this is all true and I obviously don't know what the situation was nor what was going on in the mind of the other parties involved.
But what sticks out in my mind is that Don found enough reason to NOT pull the trigger. He brandished the weapons so he must have felt the situation was getting seriously dangerous. Yet in spite of that, he found good enough reason to decide pulling the trigger was not necessary.
I think we'd all probably rather it end this way.
Of course. Likewise I'm sure that any time a cop pulls his gun, he/she is praying that they don't have to shoot, due to all the BS that follows. But, Don still 'used' the weapon, even if nothing more than a deterrant. He could have grabbed a stick. Would it have had the same impact? Who knows. I think the question we should ask Don is....would he have actually pulled the trigger? I look at it like this...if you're going to take the time to own a weapon, regardless of what it is, then I'd imagine that knowing how to use it as well as being confident enough to use it, would also play a part.
A guy could go out with his wife, buy her a gun, put her through all the safety classes, go to the range, etc., but if she doesnt have the guts to pull the trigger, when her life depends on it, she may as well have not even bothered to go thru all the classes or buy it, in the first place.