[color=#551A8B said:TinselWolverine[/color]]Monster you could just tell them that you practice the Yule but do it on the day of the Traditional American Yule Observation Day of December 25th.
And - that would also actually be true.
When the Romans established Christianity as the official religion of the empire in around 400, it was relatively simple to replace the pagan solstice celebrations like the Yule and the Saturnalian with a celebration of the birth of Jesus, who Christianity obviously holds as the Christ (that's kind of a Greek bastardization of the Hebrew word for the meaning of the "Messiah" but we won't get into that too much here).
Most of the "symbols" of Christmas that we observe have fuck all to do with Jesus but actually are tied to the ancient pagan celebrations.
And if they're Catholic, you could tell your in laws that Catholicism is nothing but a pagan and satanic polytheistic and idolotrous cult anyway that is direct violation of the first two commandments.
Or maybe you could try it MichChamp's way first.
This thread was alright and then the dumb-ass guy showed up. Way to ruin it..