First of all, he looked the part! Secondly was able to tell ds1 and ds2 exactly how they had been misbehaving, i.e not going to bed on time, squabbling, watching too much TV. He told them he knew all this because he had a little robin spying from the garden. Now, 2 days ago a robin did fly into our house from the garden, so this was clearly the truth! He warned them that as there was a shortage of PSP's this year, they would not get one each but would get one to share. Even I left thinking that he was the real Santa! And sceptical ds1 was convinced!