Uh? The Freezing Charm can be used to stop Muggle Alarms? William hadn't thought of that. That seemed so surreal even for a magical spell to be able to stop a burglar system. Even so he wanted to contribute something. He was already somewhat more talkative for this class surprising even himself. Still wimpy and fearful of just about everything that could happen to him in this school but...eh...might as well. He probably wasn't going to make it. "You could freeze your Alarm Clock and get some more sleep." What a dumb answer! If he was still sleeping in a bed he usually kept his wand at his bedside table next to some clock. Why not just hit the clock. It's extra work to use magic. Magic was terrible.