My work one has sat in my holster thru 2 trips down range and tons of training events and never once fired unless I pulled the trigger. That is with climbing over walls, in and out of countless vehicles, running through woods, crawling thru brush, fast roping out of birds and pretty much anything else you can think of. That's a fair amount more activity than your average CCer so I really just don't get the concern.
2) My son shot 30 steel matches this summer with a GLOCK 34 using my reloads. HE HAD ONE jam and it was one that had a bit too much wax on the lead bullet thats. 2500+ rounds with ONE FTF. last year he had Zero Jams and that is a kid who at that time was under 120 pounds.
Glocks are good enough for them to be huge in the competition world where accuracy is quite important, now some people don't shoot them accurately but that is not the guns fault.
My personal experience along with tons of military units and police departments choose them in large part due to their extreme reliability. I have put thousands and thousands of rounds thru Glocks and can count on one hand how many jams I have had that I didn't intentionally induce.
No the L92 may be a more accurate but two guns inherent accuracy should not be judged by 1 shooter and one or two examples of each weapon.
If you need that firearm, you have already been targeted by a predator, you are possibly behind the curve reacting. You need every second and every advantage because they have already scoped out the situation and arranged it to THEIR advantage. Your best hope is that they dont realize you are armed and that you can use that firearm immediately.