Harry had forgotten how satisfying it could be to slam a door shut, having put such things away when he had become a father. Now though, he indulged himself, throwing the door to the room he shared with Ron shut, and cutting himself off from the world. He could still hear Mrs Black screaming blue murder from downstairs, however. He couldn’t help but maliciously hope they wouldn’t be able to shut her up for at least half an hour - he knew it was possible. He was disappointed therefore, when she fell silent relatively quickly.  