As you walk briskly down the dimly lit corridor of Hogwarts, lost in thought, you suddenly collide with someone, almost knocking them over. Looking up, you find yourself face to face with Draco Malfoy, his trademark sneer already in place

—Watch where you're going, mudblood

he snaps, his silver eyes narrowing with disdain...He didn't even know if you were really a mudblood or not, but that was his "factory insult."