For the lesson, Peeves did little more than imitate Umbridge’s every movement, every noise, every clearing of her throat or scratching of her nose, and though she never looked in his direction, it was clear by the subtle twitch in the corner of her eye that she was not amused. At one point, when Harry was looking away, Peeves had somehow managed to steal, and put on the pink cardigan that she had been wearing - Harry was disappointed however, that he made no attempt to force the Professor into his own vibrant waistcoat. The only other significant event for the entire class occurred when Seamus’s bag fell over with a soft thump, mildly disturbing the rooms silence, and in response Peeves screeched, "QUIET!!!!" at the top of his voice, making the entire class jump, and inspiring a small whimper from Umbridge.