As a parent, I’ve told my kids numerous times, “Just because you can, doesn’t mean you should” when they were contemplating doing something that was perhaps technically allowed, but was either ethically or practically questionable. My son learned this lesson well when he posted something insulting about his teacher’s verbal tic on Twitter, and the teacher saw the post and was rightfully hurt by it. Sure, you can do it. It’s technically allowed, since you’re at home and not on school time. But is it wise? I forced the kid to take down the post and apologize to his teacher in person, and their relationship was somewhat salvaged. But this is a lesson some gun rights advocates have yet to learn.