My MIL just had her 60th birthday at the weekend.
She has three kids all with spouses. We all agreed back in September that each couple would take on a different job to provide a nice birthday party for her. Bring in mind she does a hell of a lot for us in terms of babysitting all three sets of grandchildren and generally just being there over the years, it was universally agreed she deserves it.
BIL and wife were in charge of booking the venue and sending out invites. They did this brilliantly.
We (DH and I) were in charge of buying decorations and decorating the venue. We did this, at quite a cost as there were lots of personalised decorations, photo board etc, plus things we made ourselves, and it took a whole day to set up.
SIL and husband were in charge of providing the buffet and birthday cake.
All roles agreed on five months ago.
SIL asked back at the beginning of January if she was still OK doing the catering including cake. She said "yes, of course" Two weeks before the party we asked SIL how she was getting on with the food and if she needed any help and she said "yeah, I can do it if you want, when is the party again?" She was reminded and asked if she needed any help. She said no and asked for people's opinions on what flavour cake MIL would like because she was making the cake herself.
2 days before the party, SIL gets on the WhatsApp group and asks if people can come round and help her make buffet food the next day as she wouldn't be able to manage it in addition to making a cake. We said yes, we'd come after work in the evening and help her finish off.
Got there about 6pm and everything is sitting in shopping bags not even started. She hadn't been working that day and her kids had been at school. Her husband has been home since 4pm and has also done nothing. We worked until almost 10pm helping her make sandwiches, sausage rolls, chicken skewers, salads, fancy olive stick things, pasties, a cheeseboard, desserts etc etc loads of food, and then she announces she won't have time to make a cake now. I'm like.... You haven't made the cake?! And she just shrugs and says she'll have to get one tomorrow (the day of the party)
Morning of party she WhatsApps and asks if anyone happens to be going to a supermarket and can pick up a birthday cake. DH tells her I have bought a really fancy topper that goes with the beautiful, tall fancy birthday cake with fresh flowers she was planning on making, similar to one she made for her daughter, so she is able to make it, and that she showed to us all last year, and that it wouldn't work with a supermarket cake and she just said "well, I won't have time now"
So I rang around some bakeries and by some miracle found one that could provide me with a very nice cake that looks looked like someone had put some effort in, but which was a 40 minute round trip and would cost us over £100.
DH and I spend several hours decorating the venue and then get ready for the party, go get the cake and get there just in time to bring to the party.
The party goes well. All night people are complimenting SIL on the food, she takes all credit for it, and then someone asks her if she made the cake, and SHE SAYS YES, and then this person keeps telling everyone how impressed she is with SIL's baking all night and for the next couple of days while SIL and her family do nothing to correct them.
AIBU to think SIL is being a cheeky bitch and want to tell her so?
DH says to leave it, I didn't make the cake so it's not like it's my credit she's claiming, he was happy to do it all for his mum, and she didn't ask us to get a bakery cake, we could have just got a Tesco one.
But I'm just seething over how little effort she puts in when it's her that asks MIL for the most and then has the audacity to lie about it.