"Well, now that I think about it," Ambrose mused thoughtfully, "Considering how difficult people have been this year, it would have been ten times worse if the heads had been two of ours. With Patil and Macmillan, at least they have to behave themselves, and hopefully keep their housemates in line." He wasn't completely convinced that all of the prefects were doing as they should, but he thought that it was likely that at least some of them were. "And we have the IS, at any rate. For the times that they rebel, even against the heads' wishes."