I sold an EM. I was checked when we took the body out, and again when we took the head out. That's never happened before. When I say checked, they actually checked the number on the card against the number on the machine. In my years bringing machines, that's also a first.
On Saturday, I watched one of the security guys stop a beverage from going downstairs. Someone I know who is, but don't know personally, got upset and threw the bottle on the floor and kept walking. I was embarrassed for the hobby, picked up the bottle, and tossed it while apologizing to the security guy for his actions.
They do a thankless job protecting our assets, and this is how a few treated them.