My sister wants me to say "Yes," to an invitation to Thanksgiving dinner (already) with her BFF & family, since my grand kids will be out of town & my niece will be on her honeymoon. First of all, this annoying woman has the ability to make me uncomfortable in my own home. And I stopped accepting her invitations after realizing I had only been invited to be assigned "kitchen duty." I don't want to spend the day listening to her FB gossip, her sons's rude, ignorant remarks....even their cookie baking grandma makes the most hateful comments. And when I try to make conversation with the "boy's" significant others, I get blank stares. I would rather stay home alone & eat a lean cusine, than be in their company. But refusing invitations from BFF, gets my sister so angry, our conversations escalate into arguments, with her saying my refusals are insulting to her friend. Any advice/suggestions on how to make my sister understand, without arguing, I don't care to be around those people? Thanks.