There is history behind this .
They took ds to cornwall with them 4 years ago, and sent him home after 3 days cos they couldn't cope.
Here is the thread I wrote about it at the time (I was called Easy back then). You don't have to read it all
I still feel upset when I think about it now . I am utterly incredulous that I got a phone call this p.m., asking if he'd like to join them on Saturday for 2 weeks in Devon.
I managed to splutter thanks for asking, and say that we had some things arranged, so probably not, but BIL said he'd give me a little time to think about it.
I don't WANT to be rude but ....
Over my dead body