He made such an impact on me that I can't even remember what he taught, but I do remember being sent out of one of his lessons before I even got to my desk. I wandered in wearing a pair of sunglasses to be greeted with "Take those off, this isn't a holiday camp!" Unfortunately my mumbled reply "No, more like a prisoner of war camp" was loud enough for him to hear and I was told to stand outside for the rest of the period.
(SFW 72-79)