Susan sighed and nodded. For a single moment the hyper rational, no nonsense side of her brain wanted to tell him that it had just been fireworks; that Seamus was probably still at Chess Club or possibly even boning Justin. But she quashed it. She knew that for Dean, the first casualty in an episode was the ability to think rationally. She also knew that Dean wasn't really talking about the flat, but about the battle. So she put on the face that no one got to see very often, and stroked Dean's hair. "I know, but he's not gone, he's safe," she said kindly. "You're both safe, and you don't have to worry anymore."
There was a small huff from next to the bed, and Susan looked up to see Shadow looking at Dean with her head tilted. Carefully, the dog began to inch forward until her head was resting on the edge of the bed. "This is Shadow," she supplied helpfully. "She's my brave samoyed protector dog."