It doesn't surprise me that hotels are starting to install these sensored minibar fridges. "Theft" of minibar items are rampant. Not just by guests, but staff will often take them as well from rooms that are checking out so the guest then gets charged. For some reason people are especially dishonest when it comes to minibars. I remember several occasions where guests came to check out with minibar items IN THEIR HANDS and I would ask if they have any minibar items they would like to add to the bill, and they would say "no". I wanted to say "but you are drinking it right in front of me you liar!!!" These are the same people who have the hotel towels peaking out of their suitcase