Goodby Silverstein & Partners founder Jeff Goodby talks about his tequila importing business—a small-batch, high-end liquor aged for 5 years in three kinds of barrels. "It makes you do your other job better to have things on the side, whether it's fishing or painting or playing soccer or whatever you take seriously," he says. He also chooses the best vandals throughout history, recommends alarming audio books and takes a milk-based pop quiz.