To ignore that as a possibility Mr Admiral is reckless. New things happen every day. You of all people know bullets have no name on them. If a teacher is trying to defend her students from an active shooter and accidentally shoots a staff member, child or even themselves... who is at fault?
You really think it would be anybody's fault but the criminal asshole who started the incident?
Why can't the police force be used to protect our community including our schools. It sounds like someone wants to be cheap and its dangerous.
And you sound like somebody completely clueless about the realities of police response times. Here's a clue: It's nothing like those TV shows you watch.