The Doctor looked at him bleakly. "All the Masters here who are sane are sane because they either never had the drums or their Doctor got the drums out. Mine had them, and I haven't removed them yet."
He sighed and handed John his mug, with room for brandy. "I don't know about Jamie and Gallifrey. Surely he can't blame me for destroying it? It's not like I had a choice." Well, except in those one or two instances where Gallifrey had survived, whispered an insidious little voice inside his head. But even those instances had relied on there being a sane Master around.