Hermione winced as the tree hit the ceiling. She immediately cast the expansion charm, throwing in a quick reparo on the plaster before Leila could giggle too much. "Here, that's better - right, perfect!" She plucked Leila's hat off her head and gave her a kiss. "Mummy's going to fix us a snack, so you help Da and DaDa with the tree. We'll be ready for Christmas before you know it!"