These are useful for sneaking alcohol onto cruise ships.

The reason things like this are made is to sneak alcohol past security. I use them at concerts. Seriously I can buy a half gallon of Jager for what 2 mixed drinks cost at a show. I don’t even want to get hammered, I just want to watch some bands I like and have a good time without it costing me a small fortune.

Or maybe you don’t give a shit about what you’re “known as”?

Or maybe the intention is that no one sees you drinking out of it?

Maybe you just want to avoid paying the completely unjustified scam 1000% markup for drinks at venues?

I’d use that shit as my water bottle just to make the world a more awkward place.