''And yet, another rational statement from you. As I have said, you do have potential and you should, definitely, use it, Krum. And, regarding your herbal theory... no, nothing you put on yourself will neutralize the effect.... this is a spell, a dark spell, and there is nothing you can do once it hits you... not even medicine can help. But there is a counter-curse, something that is not in my syllabus... but I shall teach you how to use that spell here in class, how to heal the effects of Sectumsempra'', he said.
''What, a scar? YOU HAVE A BLOODY SCAR! Oh, shut up! You have not idea what Dark Magic is, you have no bloody idea. Your experience is something you can't use in a proper duel, you ignorant kid. Your scar, your irrational sense of right and wrong, your view of the world... you can put it you know where! You have to face it to judge it, if you do not have the guts to do one simple dark spell, you can get out of my classroom and you do not have to come back! You are a Gryffindor, Dyllan and your affiliation is what should determine your behavior... you have high, but irrational, moral standards. The world is a piece of shit and it will treat you like that! If you do not face everything there is to face and learn how to defend yourself, you can go and buy yourself an apartment on the graveyard! If you do not like how I teach, how I prepare, you can leave and never come back, I could care less! And I do not want any of your idiotic opinions on my methods... I tried to be rational, I tried to be calm... but no, you want to make me into Umbridge! Would you prefer learning about the Dark Arts from third year textbooks without any practice! Well, take a book and stay in your dormitories... here, you will either work and learn, or you won't be here at all! You all think you know all of it, you've been in one fight, a fight of secondary importance and strength, you've gotten one scar and now you think you know it all! I've faced thighs, I know how it functions and I try to prepare you for that as best as I can! If you don't want that, find an idiot who will narrate his experiences to you and make you learn them, I am not that kind of person'', he said, sighing. His hair became messy out of all the speaking and gesticulating. He tidied it and looked at her. ''If you don't want to do your task, get out! Krum, you're next!'', he said, sitting at his desk to calm down.