Quote:
Originally Posted by
Mrs. Weasley 
Abby thinks hard about what Professor Lawson has said. It's a simple spell, just a simple spell. That shouldn't be that hard to figure out. If Professor Lawson put a spell on the handcuffs to prevent us from being able to open them, then I need a charm that will end the previous charm. Abby thinks for a moment, and it hits her. Of course, finite incantatem, it ends a currently operating spell. Abby takes out her wand and performs a silent finite incatatem charm on her part of the handcuffs. The cuff opens up. Since the spell has been broken, I should be able to take the handcuffs on and off with no trouble. I think it's time I play a little prank on Professor Lawson. While Professor Lawson is busy with the other students, Abby snaps the handcuff back on her wrist. I wonder what Professor Lawson will do when his simple spell doesn't open the handcuff.
As Marcus stood watching the kids progression with the cuffs, he heard the distinct click of his own cuff and he smirked a little as he felt the cuff close up once again. "Nice try Abby, but I already thought of that spell and overrode it." He turned towards the sixth year and smiled. "Magic is not necessarily the answer to every solution. Of course it helps in many ways..."
He held up their hands again and looked at the cuffs, he had done a fine job on them he must admit. "Perhaps next time you will think twice before you go and do something rash." He looked down at the girl and chuckled. "Looks like you're stuck with me...for a few hours at least."