Just a quickie, am having kitchen re-fitted by BIL and his cousin. They've come and stayed. We agreed a £100 a day each and they have done great work etc., no issues there.
BIL offered OH had been on phone to his 'D'S and he offered to , OH was meant to be helping them too but can't due to recent sudden serious health issue, this was known before money was discussed.
SIL is down too but preferred to stay at her Mum's but has been here for all her meals 
The day they arrived I cooked a full 3 course roast dinner,, all the trimmings and various alcohol etc. Got up to a full cooked breakfast, we went got them lunch, and then OH took them out for several drinks while I waited in for the sparks, and them took them all to dinner. Bought them in breakkie yesterday and today, same with lunch, last night I was shattered, offered to get a takeaway in for us all, no they wanted to go out so SIL/BIL/his cousin all went down the pub with the idea that OH might join them depending on how he felt but it would be only for a quick drink..once they had gone he realised that he felt crap so went to bed he then got a text from SIL asking when we were coming down as the tab in the pub needed paying. . . which I picked up and texted back OH in bed, and I assume you're joking. and got back a 'yes of course I was. Have since found out OH gave SIL £30 to buy the 'boys' a drink.
Sorry this really isn't a quickie but don't want to drip feed, anyway OH has got text this am, saying that shes bee thinking about it and really we should pay their petrol costs and since that would be another 100, we could round it up to £1000.
OH feels we should do it, but is a bit annoyed, my attitude is not on your nellie, OH said it came up when we went to dinner that normally they would get £150 a day, it was SIL who said it.
My feeling is the agreement was that yes we were getting 'family rates' but [a] we're family, which is the excuse SIL uses whenever she wants us to do anything for her [b] because they're family we have feed and watered them well, i have figured that we have spent at least £50 a day on them in food and booze. [lots of booze]
[c] an agreement is that!
Now SIL has said nothing to me it's all been to OH,who is 10 years older than her and has always spoilt her a bit, but in recent years I have forced a pull back on this, she actually earns more than either of us. She and BIL own their house outright we still share ours with the bank
. BIL also has a good job, and does the kitchen thing on the side.
So AIBU? should we round it up, at the end of the day we have saved on having them do it, but on the other hand an agreement was made, they have been well looked after, and it's quid pro quo, we have done a lot for her in the past and to quote her we're family. . . .
Fire away!