Why do some people put out Union Jack bunting and then pull the ol' switcheroo and only serve vodka?

I see a Britain theme, I think gin.  Warm beer.  Shandy, maybe.  Over-boiled vegetables and penitential puddings, also boiled.

Not vodka.

That is just false advertising, and cruel to those of us who like our booze to taste like booze.  Or trees.  More gin!  I demand more gin.

(And yes, I know that British people happily drink vodka, as they happily drink pretty much everything.)