I'm the same as Crayola kiddies ~ only sick days that are unpaid are mine. I have it put into my contract that if a little one is away ill and or if I call to have that little one picked due to illness, all fees still apply.
It's not easy dealing with someone who tries to get away with something...if you let them, they will keep doing it and will also try to get away with other things down the road. For myself, I put things on paper and give parents a memo regarding any issues. It is then in their file and if I ever have to terminate then I have something to show them as to why. I think that might just be my last job spilling into this one
It took me a couple of years to start growing my back bone for parents who tried to get away with something ~ I think it's all in the approach and how you word something too. It doesn't have to be a my way or the highway attitude but having said that, there has to be a mutual respect and if it's not there on the parent's end....time to do some thinking if it's a right fit.