You just don't understand how it works out in the real world of home protection. Those who are truly concerned for their safety don't drink or go to sleep in feather beds. Nope. If you are serious, you go to sleep sober, in the prone position, with your AR resting on a sand bag and your wife lying next to you with a night vision spotting scope. There is no way you'd accidentally shoot your kids or concerned neighbors even if they did get past the claymores.