Not hearing, Q goes into the kitchen. The shirt has fallen unnoticed just inside the front door. The is the sound of cupboards being opened and water running. Then Q's voice, murmuring to his turtle. He comes back out, holding a glass of water. His breathing is back to normal, but he still looks a bit wild-eyed. "I left John in the kitchen," he says. "Sometime there are fumes in the lab and I don't want to make him ill." He frowns, taking a deep drink from the glass. "I know I sat in that chair yesterday," he tells Severus. "I've only got the two and that's the one I always use. It was fine then." He gulps the rest of the water.