I was standing next to you, a subtle smirk on my pale lips as Professor Umbridge berated you for failing miserably at making a potion, and somehow blowing it up in the process. It wasn't you of course, you were a goody two shoes that never failed anything, it was all my fault, but I had successfully made Umbridge believe that it was you that caused it.

"You fool, you pathetic excuse of a witch." Umbridge shouted, a deep frown on her prune-like face, her very own wand pointed at your chest.