Wow, I didn't expect anyone to be against weak-hand practice. Don't do it yes, never considered it maybe, but against it?
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Regarding the odds of losing the use of a hand:
I don't think that to be an extreme scenario at all.
In fact, I expect to START with just one hand rather than it being a case of losing the use of one- although that could well happen also.
Many gunfights start after the victim has been knocked to the ground. The chances of injuring a hand or wrist by catching yourself in the fall are therefore great.
There is also the chance of having an arm pinned behind your back.
As a stay-home Dad, I have another reason to expect to limited to one hand. I have at least one of our children with me most of the time. Even if I stay upright, I'll have one hand/arm busy pushing them out of the way, or being tugged on, or.....
Kids or not, think about how often you have at least one hand tied up. Groceries, car keys, briefcase, lunchbox, cellphone, something- is in our hand(s) more than we might realize.
Rabbi, until this past Summer, I had never broken or sprained anything in my hands either. I had not broken any bones at all until smashing my foot this Summer. I don't know anyone nutty enough to practice driving with the "wrong foot" just in case, but I wished I had done so then!
Just because the odds of something happening might be slim, is no reason not to prepare for it- IF it doesn't require much effort to do so.
It takes little effort to practice one-hand or weak-hand gunhandling and shooting, so I do. If it took much time away from practicing "normally", I might not.
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Re the odds of being in a gunfight being small:
Of course they are. If the odds were higher, I'd stay inside. Behind armor and sandbags!
Still, the only time I've drawn a gun in 21 years of being licensed to carry was a time when I least expected it- when walking into my own home.
And yes, my hands started out full (groceries), and I ended up using just one hand.
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On having holsters for anything and everything:
I'm a holster junkie.
There, I said it. I'd honestly rather have a new holster than a new gun.
So, I guess I may have more than most people.