Heine's Transfiguration classroom is neat enough, in that everything that's used for one lesson is shoved away in its own cubbyhole or shelf, separate from items for another lesson. He doesn't want anyone moving things out of place, either, so cleaning is out of the question. Making a considering sound, he taps a pen against his lower lip before writing a mark and sitting up again.

"Make you feel bad about what you did." He crosses his arms, and adds or something mentally. But he's distracted now. "How'd you come up with that hex?"