The rubbing alcohol concoction given to regular patrons was an honest mistake. They kept that on hand as the top shelf brand in case Kitty Dukakis ever dropped in.
FWIW, rubbing and wood alcohols are metabolized into oxalic acid. Same thing with ethylene glycol.
It's what destroys the kidneys.
I thought Sterno was her drink of choice...or maybe I’m getting Kitty confused with Ter-ayza.