Family fighting?

me and my mum are really stressed this christmas we always are but my brother and dad are making it worse.I'm not as stressed as my mother because she does most of the work but we still stuff and prepare the turkey cook all the food wrap the presents clean up after them and entertain any visitors. All of this benefits them but they don't help AT ALL they just sit around open presents and moan about how stressed THEY are. dads been off work for the last week and all he's done is buy the turkey and beef just the turkey and beef nothing else but he sees that as some sort of p to sit around for the rest of the holiday doing nothing. Mums been going to work still whilst fitting christmas shopping and preparations around it she only stopped work today and dad had the cheek to say "good now you can clean up you haven't hoovered for ages"!! because apparently its beneath him to even pick up HIS paper or sweep up the mud HE'S brought in because thats mums job. I mean it cant just be us.