Sally made a tsking sound when his summoning spell didn't work. "Oh, I think running can wait. I wouldn't want you to hurt someone else, Rivers." She smiled at his glare, and continued watching him with a look of pleasant curiosity. She didn't make a habit of annoying people for the fun of it, but really, it was too easy to pass up sometimes.
She coughed that sounded mysteriously like "blasting charm!" and smiled at him again.