A bootlegger.
Easy...YOU CAN'T! I work on a cruise ship, and they search everywhere! there is liquor on the ship anyways, it's a bit pricey, but you could get kicked off the cruise if you try to sneak it on. (with...
I have never heard of any Line doing it. It's a massive earner for them.
They have these bags that you can pour a fifth of alcohol into and bring it onto the ship
in listerine bottle