I carried a pocket knife, as well, and it was a tool that most of my friends kept on their person. Unfortunately, public school adminstrators today have no idea how to truly lead and manage. They do not (will not) know how to properly apply common sense to a situation, hence, you have these ridiculous no tolerance laws/regulations. I think that many of these folks love the no tolerance regs because it gives them the excuse to be a complete jerk under the guise of being "safe" or playing "by the book".