Out for a beat-the-sun walk at 6:30. My body still hasn't adjusted to the time change. Headed out of the complex into the hood, where the only early riser of the four-legged kind seemed to be the cat Spanky. (If I lived with a Doberman I too would be out of the house pronto.) Back on the island, I passed another walker, a middle-aged woman. I looked at her, but she kept her gaze straight ahead, ignoring my presence. Halfway around, I passed her again and this time I said "hello." Nothing. I thought of the Saturday last month in Nashville when a young jogger had wished me a good morning. Here I can't even get a nod from a neighbor.