I was on the quarterdeck of the USS Cleveland 30 years ago, in Hong Kong, with a bottle of whiskey in my bag. The duty NCO had me open the bag, clearly saw the contraband, and waved me through.
Our supply guys made “bilge wine” in the hold of the Frederick. I guess it wasn’t too good, but good enough.
The small miniatures sold in liquor stores in some states was also easy to hide. I suppose ifin a man got desperate enough for a drink he could jump over the side and get some Brandy when they pulled him out. LOL.