Technically, you might "get away" with sharing a drink once or twice, but sharing a drink package on Carnival is strictly prohibited and carries significant risks. Carnival's "Cheers!" package is tied to an individual's "Sail & Sign" card, and the terms of service require that every adult in the same stateroom purchase the package to prevent sharing. The cruise line employs several measures to enforce this: bartenders are trained to recognize passengers, and every time you order, your photo pops up on their terminal to ensure the cardholder is the one receiving the drink. There is also a mandatory 15-minute wait time between alcoholic orders to prevent one person from "stacking" drinks for a group. If you are caught handing a drink to a friend who doesn't have the package, Carnival reserves the right to permanently revoke your package without a refund. In recent years, security cameras and undercover staff have become more active in monitoring pool decks and bars. While some people attempt to bypass the rules by ordering in different bars, the potential embarrassment, the loss of hundreds of dollars, and the possibility of being banned from future packages make sharing a very poor gamble for most passengers.