I'm sorry you lost this argument by me pointing out that you have moronic logic but the point stands, crossfire in a classroom is stupid and you have a shitty crystal ball. Thank you for conceding though, now we can both move on. What did Fox News tell you to think about Unions? That's an oldie but goodie.
Self-declarion of victory is the first indicator of a lost argument.
The likelihood of accidental shooting or a scene from a Schwarzenegger movie, with weapons in the hands of specifically trained school personnel, is on such a low order of probability as to make your comment absurd on its face.
But one thing is certain: Nutbags who've been shooting up schools full of unarmed people might think twice were the possibility that someone, anyone, might shoot back.