Of course - no mechanical device is 100% perfect/foolproof/etc. My PO1 has had FTF with my own handloads, which were determined to be overlong OAL. My wifes RAMI proved to be even more sensitive to OAL from my handloads, and rounds the PO1 and PCR thought very well of, the RAMI would choke on. Never on factory, just my stuff, back while I was figuring out HOW to reload.
I have personally had Glocks fail on me, watched an on duty police officer's HK USP fall apart,(seen 6 USPs removed from our rental shelf in peices), watched a Colt 1911 send it's frontsight down range, saw a Berretta splt its slide block, handled a SiG P220 that cracked the frame, saw a SiG P230 thathad every spring in it but the trigger spring fail, etc., etc. Yes, any mechanical device can and will fail, which is why the prudent carry spare magazines, (most common failure in an auto IS the mag), and a BUG, if possible - I just had to sell mine.
So when I get a decent rig, the Smith 10-8 will ride as BUG, (kinda big, I know), and I will, {STAND BY, LIBERAL LEFTIST TERM COMING UP},
feel better...
Whoops, should have also noted I have had two Taurus revolvers fail on me, one with a bent ejector rod, the other with a bent crane (!), and I have seen Smith revolvers fall out of time, had a Colt Trooper III that broke the cylinder latch release, and have a Smith 10-5 in the shop with a broken hammer. Everything mechanical can/will fail eventually, but high quality stuff, like CZ/Smith/Etc, lasts longer than others. Ask me about the kind with the Tec -9, broken frame, asked me if he could GLUE it together.