It reminds me of a hotel I stayed at that had a stocked mini-fridge. Removing any item from the fridge resulted in an automatic, silent charge. Putting it back did not remove the charge. So if you simply took something out to check it in, or if you wanted to chill your own beverage, they counted that as consuming the item. They removed the charges if you checked the bill and objected at checkout. But how many people…
Though here in New Zealand most hotels I’ve gone to over the past couple of years don’t even stock the minibar anymore, it’s just for milk and optional extras you book with the room.