Can you sneak alcohol in your bag on a cruise?

1 bottle of wine you can carry on. What I did was went on Amazon.com and bought clear flasks called Rum Runners. They are undetectable by xray. And if by some weird chance you get caught with them, Carnival's policy is to take it and give it back at the end of the cruise. Saved me hundreds in drink money. The room steward didn't even care we snuck it on.