Parental accountability didn't stop the school shooting in Pearl, MS. An armed Assistant Principle did.
You have every other john, dick, and harry complaining how the teachers are the problem and how their son would never do such a thing. Let a teacher break up a fight between students, see what happens to that teacher if he as much as lays a hand on either student; trying to pull them apart; give you a clue lawsuits.
Raise taxes, employ armed & trained security personel; and finally hold parents financially responsible when their kids break the rules.
When I went to school, you respected, almost feared certain teachers; that's all gone for the most part in many schools. Look right at your elected school boards; they impose regulations and never support a teacher when parents stick the blame.
Something else. I have seen guns in schools several times, usually a problem kid, having problems at school. The one thing administration never wants to happen is word get out to the public. They handle most guns in school issues very discretely when possible.