What kind of a lesson is this for students? I have always felt as an educator that my most important job was to demonstrate to my high school students appropriate adult behavior, civility, manners, and compassion. It would never occur to me, despite the fact that I've taught in two tough districts -- the Bronx, NY and Newark, NJ -- to carry a gun. My protection has always been treating others with respect. And you know what? I was respected in return. This is the lesson that I want my students to learn, not that they can "protect" themselves if they carry a weapon.
Let's hope that Harrold, Texas is the first and last district to make such a poor policy.