I've been with DH a very long time and we have a child together, I get on well with his brother but his brothers wife is another story. She's nice enough most of the time but makes a lot of situations very awkward because of how tight she is. Whenever she comes round if I offer her something to eat she says things like "Yes, can you also wrap some up for me to take home" no matter what it is! There's a million examples I can give but she basically won't pay for anything and is always on the scrounge.
My husbands brother earns a lot of money and so does his wife so its not like they ever struggle, BIL says its just who she is and does try to stop her.
Anyway on Christmas they're coming for dinner but last year was so uncomfortable because she basically laid claim to everything she saw. Every present she saw me open she was asking if she could have it if I didn't like it or when I was fed up of it, she was pointing at things on the dinner table saying she'd take the leftovers home and telling other guests to not eat it all! It really got on my nerves by the end of the day.
She's coming this year and me and DH are both in agreement that we need to say she can't behave like that because it makes everyone else awkward but BIL has asked us to leave it alone and just ignore her because she gets embarrassed. I'm half tempted to just cancel BIL and his wife altogether if I'm honest.
I'm several years into this womans impolite behaviour and it's casting a bit of a dark cloud over Christmas because I'm dreading her making everyone else feel uncomfortable when she starts! So to me my two options are ring her in the morning and tell her to not behave that way or uninvite them both and tell BIL why. I simply cannot have another Christmas day like last years.