Mrs Sharples - some great advice is coming your way here. My priority would be to speak with the parents and establish exactly why your gs was 'kicked out of day care'. Is this really true and if so, you have your solution which is that you can't look after a child who trained people were unable to manage.
Do the parents pay you? If so they are believing you're doing the job that trained people couldn't - if not, they're taking big advantage of you.
But it's not that easy to say no, so take the advice offered of feigning doctor's orders for a complete break from work for a long enough period that the parents must make alternative arrangements.
I'd love to have a cat.......but there is a problem
Whatever happened to polo necks?
I’m horrified at Steve Whikoff’s remark
