This is my shocked face.
You can HAVE ammo sitting out on a shelf. But you have to HAVE A ROVING EMPLOYEE in the section all the time. Or boxes of Nines are gonna walk out daily. And boxes of 4's and 8's during birding seasons. (I forget. 8's for ducks??? Been a while.). Most folks are honest if you keep them honest. Give them a chance to cheat? They will. (See: Traffic d-bags.)
Side note: Driving to VT for the Pocky-Clips last week - I saw something I havent' seen YEARS - people speeding up past traffic using the breakdown lane. I think it was 3 people total. In the distant past, you'd get a traffic jam on 24NB and one guy would do it and 10 cars would follow. No one followed these 3 morons. It was shocking to see. But reminded me of a time when people would just cheat because someone else was cheating.