Snape absorbed the outburst with no more reaction than an arched eyebrow.
"Obviously not all of you will have pertinent memories to offer," he replied coolly. "But I thought you should all be informed. So that you could offer constructive critique, since it would be a distinct departure from the usual curriculum.
So," he concluded crisply, "Professor Boot has made his opinion plain. The rest of you?" he inquired, looking around the room.