[JetGirl]

The teacher? (should be warned, at least, for allowing this)

I don't blame the teacher one iota if s/he was ignorant of all things gun and trusted the implied safety/skill/judgment of an "official".
It's what we get beat over the head with from our government all the time; "Respeckt mah authoritay!" She obviously thought someone supposedly "trained" would know what they were doing.

 

[JetGirl]

Why are we even discussing a 7 year old subject?

I can't speak for anyone except myself, but 7 years ago I wasn't a "gun nut" and this didn't even make a blip on my radar. It's good to rehash old stuff for us n00bs so history is less likely to repeat itself. It never hurts to have an edge in the btdt area. Even if it's reading from those who blazed the trail before you.