Ah..you brought a live 20 mike-mike? I don't even want to know.
A De-milled .50 cal cartridge.
A Live 20mm cartridge.
A De-milled Handgranade.
And various small arms cartridges from time to time.
And in 1965 a friend of mine got an "A" for the muzzleloading black powder handgun he made in shop class.
In the '50s we could bring hunting rifles to school during the deer season so we wouldn't have to go all the back way home to get them after school. Nobody batted an eye as they were kept safely in the coat closets at the back of the classrooms until after school, and the teachers knew they were there.
Of course, this was New York, not Massachusetts, so maybe things were different there? But, somehow, I doubt it.
It's been quite a down hill spiral in the Blue States, hasn't it? And it's not much better in the Red ones. This has gone from a free country to a totally paranoid one where kids have to wear bicycle helmets to ride tricycles and are raised scared to death of their own shadows.
Of course, given that you and your friends were raised properly, none of you ever considered shooting up the school. Sadly, that isn't always the case now with the prevailing hip-hop culture.