Damn, that's one strange tradition you got there, Dustbunny!
I mean, in the bathroom? Why?
We don't really have any real traditions in my family, everyone just shows up during the day (24th Dec) and gets wasted, then they start arguing and go home again. I don't celebrate christmas myself, other than that I give presents to family/friends.
When I was a kid though, we used to have a big Santa that held a candle, which was powered by electricity. One christmas it somehow caught on fire. That was a sight to behold, Santa melting into a big red puddle on the floor