I have two friends who were born on Christmas and I was having this conversation with them. We came to the conclusion that having your birthday after Christmas is far worse than having it on the same day as Christmas. Because if your birthday is on Christmas then you have everyone around you saying “Aw geez that’s so horrible that your birthday’s on Christmas, what do your friends do?” Then they’ll probably assume that you only get presents for one of the events and out of guilt try to compensate for everyone else by giving more gifts. Or maybe not. Day after Christmas everyone’s tired and done with the whole gift giving thing, so I imagine those people are out of luck.