Is it true that HAL actually opens and inspects carry on bags, and confiscates concealed liquor?
I've cruised on HAL before they started the no room booze policy, and many times since on Celebrity.
Celebrity has the same stated policy, but as long as you are reasonable discreet, they don't enforce it. I always bring a bottle or buy one ashore for our room, and carry it aboard in my backpack. They Xray the backpack, but invariably ignore the bottle. I have never seen Celebrity take any liquor that wasn't in plain sight, as in a Duty Free box.