That all sounds plausible, and I just don't remember where I've heard that "ground up is safer", but I'm also possibly colored by having experienced something f

That all sounds plausible, and I just don't remember where I've heard that "ground up is safer", but I'm also possibly colored by having experienced something falling between a wall wart and the receptacle when I was younger and that left an impression. Ground up wouldn't have helped in this case since the wart was a 2 prong, but it seems like there are opportunities where it could help and few where it hurts... I'm also just a home gamer, though I have done my research via reading relevant parts of the code for wiring and passing inspection on my kitchen remodel including adding circuits, pigtailing my aluminum wired house, etc... It was somewhere in there I came across the "safer, it's code in hospitals" idea. Though my memory is that the hospitals I've seen all had metal faceplates, but that's just from memory. Good counterpoint.