Apparently, egregious violations of the Four Rules on the show floor at the NRA Meetings weren't limited to attendees.
Having someone point a long gun at your chest from a few feet away is disconcerting, to say the least. I once had a customer step off the range after finishing up with a rented MP-5. In describing a feeding issue, he took a firing stance with the weapon pointed dead at me from right across the counter. He seemed chagrined when I rather vigorously threw myself clear of the muzzle, and said to me "It's not loaded!"
Yeah, pal, but the one on my hip is, so watch where you point that thing, okay?