Same here. I went to high school in a little farm town. There were no metal detectors or mandatory ID badges, people openly carried pocket knives in case they had to cut something, and some of the classes would leave you unsupervised with power tools. The only problems with security came from damn fool English teachers. One of them flipped out over a plastic butter knife, and another misinterpreted an teenage gloom as a warning sign of impending terrorism and called the police.
I, on the other hand, went to a public highschool in a well-to-do Los Angeles suburb. The year before I graduated, a senior girl was expelled from school two days before her graduation because she brought a swiss army knife on the senior trip.