"And here I thought you merely enjoyed my company," said Severus dryly, almost rolling his eyes. Of course I am useful, why else would you keep me around? Severus still hadn't quite grasped the fact that Albus genuinely cared about his well-being. There's Slytherins, for you. "You have, at least, found someone to take up the Muggle Studies post, I trust?" Quirrell's sabbatical had been covered by Matt Savage, a diminutive and cheerful Auror who had been recovering from an injury, but the energetic wizard had refused a permanent post either in Muggle Studies or in Defense. To exactly no one's surprise, he'd headed right back to active duty the moment all his limbs were functioning correctly. "Or would you like me to be useful and teach that as well? I would be just delighted."