A couple of HS classmates were having a "discussion" on FB regarding arming of teachers. Friend #1 posted a pic about a fork in the road where an attacker was at a fork in the road and had the choice of a "gun-free zone" school or a school that was known to have armed security and staff. Friend #2, who I believe is a teacher, mentioned about how teachers would give their lives for students but shouldn't be forced to carry and also about how she felt that the dangers of armed teachers.
Regarding arming of teachers, I'm all for supporting teachers and other school staff who WANT to be armed to be able to defend themselves, students and other staff. I would HOPE they get training, including how to appropriate respond when LE does arrive. That said, I believe the overreaction of the general public to the proposal of armed teachers is one of a heavily 2a media and a message slanted in terms of forcing it upon teachers to be armed. Yeah, Trump probably could have chosen better words, but that's another story.
Regarding "dangers" of armed teachers. Friend #2's concerns were of negligent discharges, which were effectively answered and countered by Friend #1. Another concern was if an angry teacher were to take things out via the firearm on another. Friend #1 effectively countered that one too as that could happen anywhere, not just schools. Friend #2 also was stating about how effective would arming teachers would be, that's where Friend #1 faltered a little and I chimed in about deterrence. How even the assumption of deterrence can be enough to have the attackers look elsewhere.
When I visited the PI, I immediately noticed what appeared to be armed guards literally everywhere! At mall entrances, even every Starbucks and Seattle's Best Coffee shops (yeah, I had a laugh about having SBC in Makati). Anyways, I noticed that many times, the holsters of the guards were empty, but you couldn't really tell unless up close. Closer look at some of the shotguns they had and I suspected that many of them were not fully functioning. In any case, it was WELL known that malls did have armed guards. While I was there, there was an attempt to rob one of the jewelry stores and the robbers were sent away by response by armed guards, with functioning firearms. The locals told me that in general, the malls are known to be guarded and generally no one tries to do much. However, you'll occasionally get the super desperate one/ones that will try things.
The one part I wanted to chime in on was Friend #2's irrational fear of guns. I didn't, but if she lived here, I would invite her out to experience firearms amongst a group of friends.