Severus' quill scratched. Severus, indeed. He glared up at Neville as though he had just burst in uninvited, and crossed his arms over his desk. "Sit down," he said, doing his best to convey how little like a request it had been. Longbottom still had the sense to give him his honorific, and it would be best if he kept it.
"Gryffindor finds itself - once again - without a Head of House." He leaned back in his chair, indulging in a small, unpleasant smile. "Curious, how the - brave at heart, isn't it? - seem to want for staying power. Since I've yet to find one who can last more than a year, I'm afraid I have no choice but to appoint you. The position does come with a slight increase in salary, but I assure you it isn't worth it."