Gun education sounds like a great idea. I think it's more than just safety. Owners need to have a healthy respect for the danger. When I used to follow vintage hifi forums more, it was common to have people new to the hobby ask about restoration. The more seasoned members always explained the danger lurking inside an old tube amp. It wasn't condescending or trying to scare them off, it was just helpfully and clearly pointing out the dangers. Maybe that's what's missing with current gun safety. They teach people how to do things right, but maybe more emphasis needs to be put on how horribly things can go wrong. Having a tube amp turned on with the chassis open is a stupid thing to do. Have I done it? Yep. I've measured 500+ V DC with my multimeter, touching the leads to exposed terminals. Gun owners are going to be stupid, but that doesn't mean they (or their family) have to die.