.... to go with this. We presently look after two GS two days a week plus other days ad hoc when other GPs or DiL or DS is working. We have them for breakfast and then take them off to school which is 3 minutes walk away. We would also collect them from school and until recently used to feed them their tea until they started being awkward as they wouldn't eat the same things (and I won't pander to that rubbish!)
So they are offered a snack but will very often just say no - as one will say no and the other copies them!! Unfortunately my DH was quite hurt (plus a little annoyed) today when one of them actively said he didn't like DH and didn't want to come here.
Now I know that this subject has been raised with DH's son before as both boys can be really quite rude and we had voiced concerns about them coming here willingly.
But he ignores not only his boys feelings (which IMO is rubbish parenting!!) about being here but also ours -not because we don't wish to be hated or disliked but I have always maintained that if anyone has feelings about people they come into contact with then they should be allowed to address those feelings. After all, we have all come across people that we have internally thought don't like or trust them - no rhyme or reason it is just the way it is!!
It could be made worse or better by the fact they are due to be joined by a sibling in September - and DH's son wants to pay us as DiL wants to increase her working hours. I don't want to paid for looking after our grandchildren but neither do I want to look after 2 possibly 3 GCs that are hostile towards us and having to do this for definitely 3 days with other days thrown in because they have not sorted their childcare issues. (we are often text messaged at 10pm the night before to fill in!!) It is hard at this point not to feel used and taken advantage of just because we are convenient for their school!!
The boys are not particularly talkative and will show up with iPads and then ignore all attempts at conversation - to be fair the older one is more receptive but the younger one is often just out and out rude.
Any thoughts please? We have another 8 GCs ranging from 7 months to teenagers to adults and just don't know how to handle this issue.
I'm trying to sort out my feelings about this so please be gentle - I swing from being hurt for DH, concerned for their feelings about me, and sometimes angry for their behaviour towards us not to mentioned feeling used by DHs son and DiL.
We are away soon and I am tempted to say to SS that we skip looking after the GCs from now till we return from a holiday in a few weeks time. DH is much like me - swinging from one thing to another - but neither does he want us to be used just for their convenience.
Just for the record we refused to do any holidays from the start as having the GC's from 7am till 6pm was not okay with us. We do look after other GCs through the holidays by arrangement with various other sets of GPs - marriages and re-marriages have made for a very extensive blended family!! If not complicated at times!!
A quote for those blessed with a spouse:


and that's just from us - the other GPs have bought them too!! 
