I too have fired thousands of rounds through various automatics, all of which functioned well, but were well taken care of. I loved my stainless Detonics Pocket 9 for a carry in my pocket piece, with its inertia firing pen that allowed me to carry one in the pipe and pull the trigger double action for the first round.
A quality piece that I could completely cover with my hand and easily carry inconspicuously in most pockets and my fanny pack. I would have never considered giving it up, but the slide did get gummy carrying in in various pockets and fanny packs. I noticed that cleaning it, so it never miss loaded, but it it would gum up badly enough with fine grit, lint, et al from my pockets, that it was clear that it would.
That is why I switched to a stainless SW 640 ace in the hole carry piece in 357 mag that I can also cover with my hand. Hammerless and they seldom fail to work for five rounds up close and personal.
If I had reason to be concerned about trouble or was going to war, I would carry a my Glock 22 with laser in 40SW, or stock 1911A1 that you can bury in dirt, shake off, and still shoot, but is loose and rattled when you shook it , or my Desert Eagle in 44 using a more conventional carry, in addition to my ace in the hole, and possibly a relatively easily concealed SPAS 12 shotgun.
That of course infers that they made it past my Barrett 90 in 50 BMG and M1A1 7.62 Nato Super Match at the outer perimeter.