When I was in college I worked part time in a Hospital kitchen, and I worked on Christmas day. I didn't mind it at all. (Most of) the full time workers could have the day off, and since I was commuting to college at the time, I was able to be home with my family for part of the day.
Plus, the doctors always tried to arrange it so that, where possible, patients could be at home for the holiday, so work was light that day.