There is a way to stop this "nonsense". Teach kids that guns are dangerous and if they touch yours their little butts will get tore up like no tomorrow. I'm 40 and grew up in the 60's and 70's in the South when EVERYBODY had at least two guns in the home. NOBODY took a gun to school or shot up a classmate. You just knew better. What do you think happened over time to lose this knowledge?
Where to begin?
I think one of the biggest causes is the big three assassinations of recent memory (JFK, RFK, MLK). Highly and unendingly publicized. The epidemic of school shootings in the 80's. The feminization of society (don't do anything involving risk or danger). The drumbeat of 'cop killer bullets', 'assault weapons', 'deadly sniper rifles', 'Saturday night specials', and all the other sensationalistic bogeymen trotted out to sell commercials on the evening news.
All of this leads to more kids knowing little to nothing, firsthand, about guns. Kids want to know and if you don't or won't tell them, they'll find out some other way out of your sight. What are the chances of one ignorant kid forcefully telling another ignorant kid "Rule #1 - All guns are always loaded?"
I'll end with this - A lot of people think of guns as a part of the pioneer/frontier days. We don't really need such awful things in today's modern civilized society. Oops, except for the police and military, that is. (barf)
Gotta go, thunderstorm en route!