Professor Snape was forcing them to research antidotes. They took this one seriously, as he had hinted that he might be poisoning one of them before Christmas to see if their antidote worked.
J. K. RowlingBad news, Harry. I've just been to see Professor McGonagall about the Firebolt. She โ er, got a bit shirty with me. Told me I'd got my priorities wrong. Seemed to think I cared more about winning the Cup than I do about staying alive. Just because I told her I didn't care if it threw you off, as long as you caught the Snitch first.
J. K. RowlingYeah, she shows signs of life if you do this," said Ron, and with his tongue he made soft clip-flopping noises. Umbridge sat bolt upright, looking wildly around.
J. K. RowlingBut some part of him realized, even as he fought to break free from Lupin, that Sirius had never kept him waiting before. . . . Sirius had risked everything, always, to see Harry, to help him. . . . If Sirius was not reappearing out of that archway when Harry was yelling for him as though his life depended on it, the only possible explanation was that he could not come back. . . . That he really was . . .
J. K. Rowling