Now that you mention it I remember that one too. And I bet every time he sits down he is reminded of it. Looks a lot like where my buddy shot himself with my old MAB.There is this instance where a worn out leather holster depressed the trigger. Fault of the gun? Not really. Supposed to inspect your equipment and this holster should have been retired.
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I think part of the reason I distrust striker fired is because I grew up on single action revolvers and was taught to cock as I was bringing the gun level. Heck I still carry hammer down on my SA autos and cock as leveling. I know some will say it is unsafe but with a thumbsnap over the hammer there is little to no chance of it firing.