Owl to Ryuuji
I don't know why, but I will tell you.
I lost control of myself. That is the simple truth of the matter. It was the weekend, and I was outside along with many of the other students. It was unusual for it to be so warm and sunny this part of the year, apparently. My classmates did not like me, and at the time, they had no real cause to fear me. I was different enough, however, to be teased frequently, but I somehow kept my temper.
One classmate, older and bigger than I, was having fun at my expense. This school is a breeding ground for bullies, did you know? This classmate was beneath me, so I ignored him. Until he made a comment about my father. I will not repeat it, but I recall the words clearly. My swords were in my hands before I could even think about it (summoned, most likely) and he was on the ground beneath me before he could even blink. I told him in no uncertain terms that I will no longer tolerate any abuse on my person. I made some vague threats about making them all suffer, growled some more nonsense I had no intention of following through on, and promptly sliced off his clothing. I only wanted to embarrass him, truly.
McGonagall was livid. It seems that disputes in Hogwarts could not be resolved physically between the persons involved. My swords were taken, and I was given detention. On the bright side, no one comes near me.
Odd, I did not intend to write such a long letter. As you can see, I was simply careless.