Vodka makes up the lion’s share of a Harvey Wallbanger, but it’s the dash of Galliano that makes it distinct. People may remember the name of this very 1970s cocktail, but few, if any, still order it. One of numerous stories has it that the drink was mixed for a disconsolate surfer named Harvey, who downed several Screwdrivers laced with Galliano and then summarily banged into walls while exiting the bar. More likely, it was Galliano liqueur’s enormous advertising campaign featuring a goofy cartoon character called Harvey that made the Harvey Wallbanger one of the hippest drinks of the 1970s. Its success followed on the heels of the Moscow Mule, but the Wallbanger has similarly joined the “endangered species list” and been put out to pasture with the Mule.