 For 15 straight years, our old dog Clark, a hound-shepherd-retriever mix who was born in the woods and loved the outdoors ever after, spent the Fourth of July in our walk-in shower. He seemed to believe in a windowless shower and a windowless bathroom offered his best chance of surviving the shrieking terror that was raining down from the night sky outside. Did he think the fireworks with their window-rattling booms were the work of some cosmic predator big enough to eat him whole?