[portman]

You would not find it insane if you had spent a lot of time in the southern USA.

For a "guns-in-school" story just Google "University of Virginia John Davis shot".

The TL;DR; is that on November 12, 1840, a rowdy bunch of college students were drinking and shooting (as usual), and rode up to a professor and shot him. While tragic, this eventually paved the way for really, really entertaining college admissions tours that often feature a full re-enactment of the scene.