What's with the guards by the vending machines in terminals? What would happen if I insisted on using the vending machines?
The airports I fly through have nooks with vending machines. When I go through (always day or early evening), there's always a guard. I tried to use the vending machines a couple times and was told "no" and they're only for when the shops are closed.
What goes? Whose policy is it? Do the shop vendors pay separately for this extra protection?