I too have to face the family around christmas. I have gotten out of thanksgiving last year and this year because I have to work black friday, so I can't go home. My mom was the emotional abuser, still can be at times but not as much since i don't live there anymore. I can tolerate being home a few days, but I try to make sure I have some plans with friends back home to break up the time I'm actually at home.
My dad was the physical abuser, and thats a little tougher for me now. He disappeared out of my life for 6 years before coming back into my life in 2010. For the first year or so, things were okay. It was awkward, but okay. However, since my PTSD has kicked in and the nightmares have started, it makes it way more difficult to see him. Thankfully we have a good amount of people on dad's side at christmas and so I can mingle. My Aunt also is really close to me and she can tell when I need a break from my dad. He wants me to come spend the night at his house after our christmas, but I'm just not going to be able to...