Spring means we must block the dog door, lest Beatrice bark at rabbits in the wee hours. This can mean that I must arise to give a dog a pre-dawn walk. This morning Bea and I went into our back yard. A small, thin snake was on the patio. We stopped to watch. We saw it crawl in slithering s shapes. When it slid out of sight we went indoors. We had had enough serpent sighting for one day.