Rusty
What a lovely lad he seems!
These situations are always difficult Di, particularly when you have to leave one behind.
Because it comes 'naturally' to us (being the kind of people who frequent these forums), we think that everyone should have some kind of basic, inbuilt knowledge / common sense regarding pet care.
I'm sure Rusty's last home meant no harm whatsoever, in fact they loved him dearly. They just have little idea of what it takes to provide basic care.
Take heart from the fact that they are 'trying' to do the right thing by the dogs now, and they can be worked on to let Sandy go too.
I'm more angry that two seperate breeders would home pups to people who had major family commitments, had never had a dog before, obviously hadn't a clue about what was involved caring for any pet, let alone two 9 - 11 weeks old pups ( something I wouldn't recommend for anyone), and whose coat I would find a challenge!
Guess it all comes back to Education, Education, Education ?!!