Killian was frustrated, again.
He respected Professor Ellington, in that she was alive, and actually appeared to listen to student answers, and asked questions, and was generally an acceptable teacher. But History of Magic was so frustrating a subject. It didn't matter! How could any of this matter? At some point he had to adopt that in his head, when they had reached the point in history Killian knew the Triangle Trade was happening, and wizards did nothing. Again when they had covered the 1940s, and on and on and on. The self-centeredness of wizarding history disgusted him so much.
He was holding his tongue, trying not to start again on his favourite pastime of well, actually-ing the lesson. This was, what, right when the Crusades were happening? Wizards could fight back so much better than the Jews and Muslims between here and Jerusalem. Or was it the bubonic plague, which wizards apparently had immunity to? How many deaths had there been? What had wizards done to prevent any of them? What goodwill did they deserve from normal society?
Killian's lips were curled in, trying not to meet anyone's eyes, knowing he would burst into some rant if he did. Emerson mentioned the swimming test, he could hear the tears in her voice, and he wanted to roll his eyes.
If they had not been infiltrating the magical world in the first place, they would not have been asked to register. The bickering between Reinhardt and Jae Kim was familiar background noise, but that was -- Killian saw red.
He twisted around in his seat, ignoring that Professor Ellington would absolutely see him disregarding the lesson. Jae was talking back already, had barely finished before Killian lay into her. "Cool, hate-speech against Muggleborns is a great look, Reinhardt. Why don't you say the slur? We all know you want to." This was not perfectly behavior, he was aware, but who cared? "You're a bigot who's only good at wandwork because Daddy paid for a tutor. The fact that you stand by the registration act five years after it was revealed as a tool of a fascist racist government is embarrassing, and you should be embarrassed. Why would anyone want to infiltrate the magical world? It's got people like you in it."