Same thing with the mini-fridge on the cruise ships.
Beware the shelf life of some of the crap that is in the fridge !
Previous guest mad as the dickens likes his revenge "Shaken not stirred" !
Open a can of beer or carbonated beverage and have a champagne shower !
Another method is changing the themostat/temperature "Some like it HOT" !
Watch out for amber color liquors being switched with something most foul - check the seal !
Some convenience #@%&*^$ !