I keep circling back to this point about allowing teachers to pack heat in the classroom: What if, in the case of a shooter opening fire, the teacher misses and hits another student with a stray bullet?

I heard a teacher today talk about that possibility. He packs a pistol in his boot and said he would shoot someone who entered his classroom “without hesitation.”

Then he said his worst fear is missing the shooter. “What if I hit a student?” he asked. Yes, what if?

Then he sought to justify it by suggesting it’s better for one student to die than many others, prompting my wife to say, “Sure thing, then tell that to the parents of the student.”

The Parkland, Fla., slaughter of 17 people has opened wide the national discussion about gun violence. I’m glad about that. It has produced some interesting proposals by the president of the United States, who is suggesting a law creating a 21-year-old minimum age for the purchase of a firearm. Donald Trump also has spoken favorably about arming teachers, saying that if the Parkland shooter had encountered a teacher with a gun, he wouldn’t have been stopped.

I cannot buy the notion that putting more guns into schools makes them a safer place. National Rifle Association boss Wayne LaPierre said arming teachers would “harden” schools as a target. I don’t buy that, either.

My biggest fear is what happens if a teacher doesn’t hit a shooter with a kill shot, or at least a round that disables him to where he can no longer fire a weapon? Does an enraged gunman keep shooting?

We won’t solve this matter on this blog. It’s just that the notion of arming teachers just doesn’t feel like a sensible solution to curbing the hideous recurrence of gun violence in our schools.

This is not a hallmark of a civilized society and it damn sure is no way to “make America great … again.”