Me and my ds were actually expelled by our first childminder when he was 9 months. She asked us to leave! She already looked after my best friend's daughter, and I thought I could not have a better recommendation. How wrong I was.
Sleep was the root of it, looking back. She refused to put him to sleep anywhere other than a pushchair, and then when he didn't sleep she said she refused to rock him to sleep in it because she it wasn't fair on my friend's daughter. He would then,(unsurprisingly), get overtired, scream all day, and she would end up bringing him to me and the school where I taught, claiming she had a headache and couldn't cope. She asked me to stop breastfeeding, as she felt that was part of 'the problem'. (I refused).
After she asked us to leave, citing part of the reason as 'he cries at the library, and it's not fair on other people' (don't take a 9 month old to the library then- du uh), she worked 2 weeks notice. During that time, I arrived to find her screaming at my ds for crying when she had left the room to answer the phone. Needless to say, I removed him immediately, and she didn't work the rest of her notice. This woman had been a childminder for 15 years and had received an outstanding Ofsted.
Our second childminder had also worked for 15 years, also received 'outstanding', and is truly an angel. She won my heart when she said 'I will do most things you ask, but just don't ask me to leave him to cry, because I never could'. She solved the sleeping problem by trying various places, finally finding a solution in a a car seat, which ahe rocked for 10 minutes (hardly 'unfair' to her other 2 charges) and after 2 weeks she just needed to put him in it and he would sleep. Obviously he was much more settled he slept. 2 months later and she could put him in a travel cot. Their relationship went from strength to strength, and now he is 3 and they both adore each other.
I can't ask for anything more than the mothering she gives him when I am not there. She is worth her weight in gold, and I am so grateful. There's no way I could expect that kind of relationship from a nursery.
My advice would be to look around for another childminder - I'm so glad we did.