Private to Rose Weasley:

Tomorrow morning! We should most definitely set Operation: Jell-o Bomb into motion shortly after classes begin tomorrow morning. That way, we have to enjoyment of knowing that everybody will get to enjoy the full extent of the plan, since I'm pretty sure everybody is in class on Monday mornings. AND we might gain some supporters (even if they don't know who we are, if all goes according to plan), since it's very likely that at least part of the day will have to be cancelled when the professors get roped into cleaning up the mess! Fun, jell-o, explosions and cancelled class on a Monday, all in one go! What do you say?