I was at the airport in Auckland the other day and mooching around the duty free shop. My little girl likes snow globes, so I picked out one showing some charming New Zealand sheep. No snow, technically, but when you shook it, little stars sparkled around the ovine cuties. The Kiwi sales clerk swiped my credit card, wrapped it up, and then said, "Oh, wait. Are you flying to America?" I should have known. She consulted her list of prohibited items and informed me that, in an expansive definition worthy of the Massachusetts Supreme Court constitutional-right-to-same-sex-marriage ruling, the twinkly fluid...