I have something I have been wondering abou the Educational Decrees in OotP. We know from the books that they were posted on the notice boards in the common room, but how did they get there in the first place? Did the prefects put them up? The Head of House? Or do you think they just materialized there? Umbridge might have had special access to the school common rooms, but I'm just not sure if she would do this herself. But if she did, it would make for a great plot point in my story.
I would love to hear thoughts and opinions. Is this even ever mentioned in the books? All my copies are packed away in storage.