Changes at Hogwarts

Umbitch's arrival and her many decrees prompt the whole of Hogwarts to revolt. But not only the Gryffindor's. Though not many, heck most of the professors didn't know it, during Harry's 2nd the relationships between houses improved greatly, with a spot of acting here and there to keep up the image. But with Malfoy realizing that whoever this Death Eater is isn't going to get him a Head Boy badge, Harry telling the entire student body what the Ministry is doing to him, and Hermione oh so very tempted to throw both book and teacher out the window, There's no more acting to be done. Only revenge, Retribution, and Revolting. Or, as Neville remarked, the R's of Potter