DH and I have the SC this year for Christmas. They are here tonight until Boxing Day and it has been court ordered that Christmas will alternate each year so that the dc get Christmas with each parent. It went to court because dc's mother was obstructing contact and had actually never let DH have them at Christmas.
So she has now made today 'her' Christmas Day. The children were told that yesterday was Christmas Eve at mummy's and this morning Santa came and they will have their full Christmas lunch before coming to us for actual Christmas Eve. I can't help thinking it takes the shine off Christmas Day for them as it happens twice and also the SC now believe that they are the only children in the world for whom Santa comes twice a year. I know this seems a bit petty - but I think when you split up, you have to accept that Christmas is shared from then on.