Arkansas School Posts Sign Warning That Teachers Are Armed, Gunmen Will Be ‘Met With Deadly Force’

[Lee-Lee]

25. Not signs directly

But it was mentioned that the presence of school resource officers or security often was a deterrent, and that mass shooters who they got alive did often admit they chose targets based on perceived security. The signs would seem to simply be an extension of that deterrence.

In fact at least one of the experts recommended that if a male (since male voices are more intimidating and are more likely to pull it off with a sound of authority under stress) was close they should yell "Police, drop the weapon" as it would stand a good chance of getting the shooter to go ahead and take their own life or at least get inside ther mental process (OODA loop, if you look it up) and cause them to shift patterns and flee. I'm not sure I am fully onboard with that, but it was an interesting insight.