"He's nice to us in particular," Siobhan said. "I swear I'm the only Gryffindor that hasn't been picked on yet. Maybe it's [i]because[/i] we're not-friends that he does that." Siobhan brushed down her skirt and brought out her wand, muttering [i]scourgify[/i] under her breath. The resulting spell was only strong enough to take off the loosest layer of dust from the table beneath her, which was good enough. It was the job of house elves anyway. "So what are we going to do about Trisha? We have Potions with her soon, right? She's our only hope of becoming friends again – at least, to the outside world." And how strange was that?