To you I say, what about the Jews who celebrate Hanaka, or the people that Celebrate Quanzica, or any other of those oddly named holidays. If they miss out on those days, they are still expected to make up what they missed. Yet you good Christians seem to think you are exempt from that and shouldn't have to miss anything. If they can miss out on a day or two for their holidays because they are that important to them, so can you you greedy bastards.
My school goes on Christmas break on the first day of Hanaka and it's a big enough gap to cover Kwanzaa, Christmas, and the New Year. And it's not really the Christians' fault someone wanted to make up a random holiday and tried to associate it with Christ.