Survived second Passover meal at ours with 20 people... despite mother-in-law trying to ruin in (and ruining it for DH). She was pissy because he pretty fairly got angry with her for doing that 'non apology' thing repeatedly on the phone the other week, which is very her - you know the 'I'm sorry if that upset you' 'I'm sorry you feel that way' etc. I think he was already a bit on edge because he'd made a big vat of chicken soup two nights ago and for some reason it came out tasting weird and bitter and he had to chuck it out, which has never happened before.
Anyway, MIL kept getting annoyed about how he did things and upset about not getting to read bits she wanted to read as part of proceedings, so by the time we were preparing dessert he was just not able to cope, and was struggling to stay polite while telling people to get out of the kitchen and stop helping, because it was stressing him out. He had to leave the room for a breather.
Then when I asked my dad to say grace after dinner MIL was all sulky with me saying 'But I want it so people can join in' (my dad does do bits people can join in, albeit some of it with different tunes from DH's family - everyone has slightly different traditions). Which did piss me off because it's my family too and my house and I don't know how many more years I'll have my dad around to do that kind of thing. Honestly, she was being a brat.
I still had a nice evening, but she really spoilt it for DH and made some points tense for other people around her, which is not on. She likes to berate other people for being rude (when they're not) but I don't call coming and trying to sabotage other people's evening, especially for an argument that happened in private.
Sorry, just needed a rant...