Same in Missouri when I was in high school (70s). We always had loaded rifles and shotguns hanging the rear window of our pickups. That also included teachers and administrators. Parked on school property. If someone had a new or differnt firearm we would all gather around and check it out on lunch break or after school. Teachers included. Many of us hunted either before school or right after school depending on the season. Ironically not once was there ever an incident of violence involving a firearm or even an accident.

I thought #5 was don’t remove your gun from the holster unless you intend to use it (e.g., don’t brandish or bluff)? 😉

Southwest Oklahoma, mid 1970s –

Typical high school parking lot pickup truck rear window loadout, a rifle, a lever-action, and a shottie.

Most of the time, windows down…