Draco was right; he couldn’t spend the whole year in detention again, they did have other things to be getting on with, but he wasn’t prepared to lie down and just accept whatever she threw at him either. No... he needed to be sneaky about this. He couldn’t be implicated in anything, or he might as well just stand in the middle of her class and proclaim the return of Voldemort and be done with it. No, sneaky was the way. And while there was no way he would manage to be above suspicion, he just needed there to be no proof. So using his wand was probably not the best idea, which would make magical methods difficult, but by no means impossible - he was a dab hand at minor piece of wandless magic. He certainly wouldn’t be doing anything spectacular that way, but it didn’t need to be spectacular, it just needed to be really fucking annoying.