I actually had a thought occure to me... i don't know if any one else recalls this or not, but in HP&SS, harry is caught by DD in the class room with the mirror. Harry asks DD what he saw in the mirror and knew that the answere he gave him was not right, but instead of prodding DD he just took what he said. I am now wondering what did DD actually see in that mirror?! Was it Grindy? and if so...How long did DD sit in front of that mirror before he himself realized that he could waist away "Dwelling on dreams"?