Dean stared for a second then laughed delightedly. "Absolutely," he said with enthusiasm. He'd never actually had anyone who'd joined in with him when he was brainstorming this sort of thing, jokingly or otherwise. Well, aside from Sam, but that was different. Besides, Dawn was a lot prettier than his brother. Especially when she was all bouncy and excited. "Or, even better," he said, taking her idea and building on it, "a holy water sprinkler system. It could put out a fire and take care of a demon all at the same time. Would just need to come up with some kind of demon sensor that could activate it..."