We all know the usual turkey, roasties, Christmas jumpers etc people do for Christmas, but is there anything your family do or have that's a bit odd?
Me? My mum was Canadian so we always had both mash and roast with Christmas dinner. And spinach. Husband thinks I'm nuts as I'm the only one who eats them.
Also, we always have these special potatoes my mum used to make which are basically jackets, scooped out, mixed with philly and sprinkled with paprika and popped back in the oven. Outsiders to my family end up total converts when they have them with our Boxing Day meals (the far superior Christmas meal).
Also, one present opened at a time, in order, delivered by the "postman". My mil always tries to make us open presents at the same time when she pops over, gives me major anxiety. 