There's no accounting fro some people's taste - aka @@Joe Canadian
A Tankard of Moose Urine
"Excuse me, I think ye gave me the wrong mug. I ordered a beer, an' this seems ta be a tankard o' moose urine."
— Durkon Thundershield, The Order of the Stick
There are generally two kinds of bars in fictionland: those where they serve beer that is the nectar of the gods, and those where the product going into the user's mouth tastes about the same as the stuff that comes out of it later that night.
This trope is the latter. Often the mark of a Bad-Guy Bar. Do not expect this to keep the patrons from swilling the stuff anyway, or from handing you your hindquarters if you ever discuss this trope in the bar.
And this is what they serve when they run out of moose urine too