So did Trelawney's, by this time. I wasn't present, but Harry and Ron told me how Umbridge did all she could to throw Trelawney off her stride, asking her all sorts of difficult questions, interrupting her, and making it all but impossible for her to teach. If Trelawney had been more valuable to me, I'd have tried to figure out a way to help her as I did for Hagrid, but, as things stood, it was bad enough that I was grateful for Trelawney distracting the foul toad.