So, armed teachers? Not going to happen. Other countries don't have monthly massacres and 12,000 gun mirders a year, maybe we should consider another strategy? If Bob and Bill have the same chores but Bob does his in a fraction of the time which is the better approach:
Bill insists that his way is the best and whatever Bob does is stupid.
Bill inquires and observes Bob's methods and is open to improvement even adopting, OMG, someone else's idea. Weird wild stuff.