When I was five and Sarah seven, my mother went on a trip. She was gone from our home in Rochester, New York, for several days. But she was often gone — not always from the house but missing from our lives nonetheless. Then one day Sarah and I returned from school to find her standing at the door, a piñata in her hand, smiling her spellbinding, I-am-overjoyed-at-the-sight-of-you smile. Now when I imagine that scene, my mind’s eye puts a sombrero on her head, but I doubt she was wearing one. She had just come home from a trip to Juarez, Mexico, where she had obtained a quickie divorce. She told us she was taking us to live in Florida. We had no idea where – or what – Florida was. “There will be oranges there,” she said. “They’re everywhere. You can reach up and pull them off the trees.