Or when a brick someone was accidentally carrying, accidentally flies out of their hand, accidentally breaks the glass, and the items all accidentally fall out? And then being a civic minded person they pick everything up for safe keeping, because you never know with some people.... of course nobody's going to steal a brick so that can stay...
I'm not sure I understand how the machine works... looks like you swipe a card, open the doors and take something and the machine will bill you for it?