Hermione had stayed quiet all through the discussion, but, after Ron and his brothers had left, she pulled him off to the side of the room, and said; "Harry, what is going on here? Obliviating teachers? Percy is a Prefect, he is supposed to be making sure the rules are being followed, not breaking them like that! We could have just taken our detention, if they even gave us one, and gone on from there. This is not good! What if they break the memory spell, we are going to be in bigger trouble! Hmmmph!"