Yeah, I don't think you can test for that. Philosophically speaking, is the goal of law to create a system that prevents people from being stupid? Similarly, I'm not sure that the goal of the law should be to make people feel safe.

Of course, if you were to toss me into a room/house/whatever full of armed and drunk people, I'd probably feel pretty damn unsafe and get out ASAP. Guns and alcohol do not mix, and I could see arguments for making it like cars: if you're intoxicated and you're carrying, it's a felony.