I feel so bad for you!

Of course my first thought was that you should stop babysitting them, but then I read about the problems you'll have if you do that. So I agree with 33girl... just blame it on the doctor (and I'm sure the doc would tell you it's not good for you anyway). In that case, she shouldn't get mad... although she sounds SO mature

, so who knows, maybe she will anyway. But you have got to get out of that situation.
And I am like

at the fact that she won't get her kid's tooth fixed, but yet she can buy all this other crap. It makes me so angry the way some people choose to raise their kids!!!