What if poochy had chewed off the trigger?
"What if...?" Is fun because you can make it into anything you want, even if no one has ever heard of it happening and even if it's not really plausible.
Glocks are great guns, but not the toughest, most rugged.
I tend to agree that they're not at the absolute top of the list, however it's not because they have plastic frames that can melt if you put them in a fire or because if you give them to a dog it can break them, it's because the coiled trigger return springs break now and then and because the stock front sights loosen up if you do a lot of holster work with them.
...into a fire for a certain time frame...
By the way, your idea of testing guns by putting them in a fire is problematic--it will ruin any gun.
1. Many metal-framed guns have plastic parts, and if you melt those parts, the guns will become non-functional. Even guns that are all-metal in every other respect often have plastic magazine followers and floorplates.
2. If the gun gets tested in the loaded state, the rounds going off in the magazine are almost certainly going to cause something to break.
3. Even if you can find a gun that is truly all metal--no plastic at all in any part of the gun or magazine--and even if you put it in the fire unloaded, it will still be ruined. At best, the springs will lose their temper and that will cause it to cease to function, at worst, critical parts of the gun can be weakened to the point that a catastrophic failure results if the springs are replaced and the gun is fired.
Besides, you need to look at the big picture. Every gun I'm aware of has at least one weakness that can be used to easily render it non-functional. If your goal is to rule out one particular gun or class of guns, you can focus on that single feature to the exclusion of all others to try to "make your point".
Or, you can look at the big picture and compare the various contenders on a more even playing field if you really want to learn something.
Depends on your goal, I guess.
So I have crossed "run over it repeatedly" as one of the ways to break a 1911.
Well, if you want to be totally accurate, you crossed out "being dropped on the road and possibly run over" as a way to break a 1911. There's no way to tell if, or how many times it was run over even if you can verify some of the other objects got run over more than once.
Besides, I have no problem believing that a 1911 (or virtually any gun for that matter)
could survive being run over without functional damage. That's not at all the same thing as saying they CAN'T be damaged by being run over. It all depends on a number of things.
I had my foot run over many years ago and was totally uninjured. The car was small and the tire didn't get far enough up on my instep to smash things flat. But I'm certainly not going to state that my feet are impervious to injury from being run over on the basis of that experience.