@happycamper47 - I don't know what they do about the full-out cases of water that aren't in a suitcase because I don't feel the need to bring water on board, the ship water is perfectly safe and fine (and if I do carry on any wine or soda it's in my carry on like it's supposed to be.) It's possible they DO hold those and people have to go to a "naughty room" to get them and are told not to do it again. (IMHO they should be held until the end of the cruise, but that's me.) My guess is that many people are disguising them in luggage.
If you read all the information about the cruise and bringing beverages on board, it clearly states that all must be carried on.
If you choose to take the risk and it busts, just be prepared to pay for cleaning, repair, or replacement of others' property your selfishness damaged.