There's a local mum who's used two childcare workers I know, both of whom now refuse to work with her. (I say childcare workers, one is a babysitter, daughter of a friend, the other is an au pair, but quite a knowledgeable one, who's worked for loads of people.)
I've used both these childcare workers, and am happy with them.
The problematic mother in question got in touch to ask about a third childcare worker I'd mentioned somewhere public. I sent her the details, then went back and found out that she'd managed to annoy both these other girls.
(She didn't hit them or refuse to pay them, she was just rude and unreliable, cancelling arranged worktimes, etc etc.)
I've left a somewhat hurried message on the nanny's phone, explaining, a bit, the history, so that she can feel free to price herself higher, or at least be aware that there's a potential problem here.
I feel sorry for her, and her kids. I'm tempted to recommend a not-very-good nanny who I know is always looking for work, but can't quite bring myself to ...
What would you do?