If you have a dog as a child, you'll take lots of pictures of him/her.
If you take lots of pictures, you'll (likely) drag them to take professional pictures at least once.
If you get professional pictures taken, then you're definitely one of those parents that will dress him/her up for Christmas (or just dress them up period).
If you dress your dog child up for Christmas, they'll likely need a treat to sit still.
If you give your dog a treat to sit still, they likely won't sit still at all and you'll be hoping to get at least one perfect shot.
If your dog child won't sit still and you STILL manage to get one good shot, you'll happily spread the Christmas cheer for all to see.