Despite its stature, you can actually still get a Penicillin at the place where it was invented and get it made by the man who invented it. Ross and his partner, Michael McIlroy, inherited the original Milk & Honey space, from their former boss, Sasha Petraske, and remade it as their own bar, Attaboy. Strangely enough, Ross now needs to persuade drinkers seated across the bar from him at Attaboy that he's really the man behind the 21st-century's biggest cocktail. The drink is too famous at this point, too famous for one little barman in a sliver of a bar on the Lower East Side to have created it. Customers are confident the drink came out of Los Angeles, not New York. Or they think Ross is too young to have done it, because everyone knows that the Penicillin is a Prohibition-era drink.