See, and this is how it should have been handled. The End. I doubt that any of the parents would be squawking about their kids having to do manual labor and clean up their mess at the school. Seriously. Why would that have been such a hard decision to make?
We did crap all the time when I was in school, the teachers and the principal handled it and punished us accordingly. They didn't do ridiculous crap like turn stuff over to law enforcement. Hell, I don't even remember any issue going up to the Board of Education. We had a shaving cream fight on the bus and we all got to spend our Saturday scrubbing the bus from top to bottom, inside and out. There were no police, no hysteria, nothing.
Why does it have to be so hard (and so dramatic)?