She flipped the lid of the toilet down and used the commode as a makeshift chair, allowing her injured foot to stick out from the rest of her to reduce the pain of standing on it. She listened patiently for a few moments before she finally heard footsteps approaching the bathroom. There was a knock, and she wiggled her fingers at the door to unlock it for Snape to enter. His eyes widened for a moment when he saw her state of undress. She nodded in the direction of her foot quickly and his eyes widened even further before he dropped to his knees and withdrew his wand from his sleeve.