Suddenly, there was an enormous explosion of goose feathers from the top end of the pillow, as bandages shot out of the end of Harry’s wand and tied themselves tightly across the middle of the pillow, pulling taught like they were trying to throttle it to death. Harry gaped at the feathers that now covered both himself and his bed, as well the surrounding floor, and Snape’s warning suddenly didn’t seem severe enough. He caught sight of himself in the mirror, and Harry was immediately gone - collapsed back on his feather covered bed and laughing uncontrollably to himself, both at the thick layer of feathers that covered him, and the shocked look on his face.