In a previous life we could say there is more to this, or something else is going on, these days, this is no surprise at all, that is sad.
When I was in grade school in the late-80's, I brought a spent shell to show-and-tell. My interested teacher asked me what kind of gun I shot. Today, the same act would get a student a two-week suspension, if not more. The world is mad.
Then the principal would either have to suspend most of the students because "that's the policy," set a precedent that discretion can be used when enforcing even a "zero-tolerance" policy, or get the policy revoked. It would be even sweeter to get the principal and board members on the record making statements like, "My hands are tied," "There's nothing I can do," etc.
Thanks for entertaining my little fantasy of rubbing their zero-tolerance noses in it. I feel much better now.