Ds is in reception and this will be his first Christmas play. He is happily singing the songs but is refusing to actually take part. The whole class are to be angels and ds is seriously unhappy about that. He "hates angels" and is adamant he will not wear tights or leggings. How can I persuade him to take part? He's not convinced by me telling him the angel Gabriel was a man. What if he really does refuse to go on stage?