A man as prominent as any among these tropical jigger-Johnnies is Dave Power, late of Oahu's Town, currently at The Feral Pig in Lihue, Kauai. A scholar of his trade, he is an encyclopedic and well-spoken historian of his subject, a consummate host, and loyalist to his brothers. He'll happily pour you a local pineapple pale ale (don't scoff, it's intelligently crafted), but get further into his apothecary's set of dark, hand-labeled tincture bottles and soon it's off to the races with enough Twain, Vonnegut, and Charles H. Baker, Jr to have you clawing desperately through your own back-catalogue of witticisms and benevolent barbs. Have him mix you this concoction—El Diablo de la Puebla—a refinement of an old Trader Vic's margarita, wherein tequila is tightly tempered with a relatively small amount of tart fruit as it blossoms upon the sweetness of creme de cassis. While most margaritas are the stuff of misbehaved and sun-maddened dealership men, this refined and none-too-sweet concoction celebrates its featured ingredient with a sophistication befitting a fine paisley robe, smoking fez, and reading stone.