Haha, I almost forgot this gem. In grade school, I accidentally brought a pocket knife to school since it was left in one of the side pouches of my backpack after a camping trip the previous weekend. I was naive then. I told my teacher about it, which could have ended very badly. His response, "Just don't take it out or tell anyone". Oh, the good old days.
I'm a fairly recent graduate from school- I accidentally carried a pocketknife in the bottom of my bag from grade 6 to 11, never had amy problems with it.