"We staff will only duel the first night. The following weeks we'll be taking protegees and teaching them, that's why we needed three or four staff involved. There's already a signup sheet for those in fifth year and above with thirty names on it." Dumbldore said, then laughed at Mia's face. "Oh don't be cross. If you like, when we can both spare some time, you and I can set up duels between us in the quidditch pitch."