In a nutshell, how much do you take for granted with your nanny (e.g. DON'T leave 3.5 yr old alone watching TV while you take the 9 month old out for a walk), and how much do you need to spell out (DON'T feed the baby your chocolate chip cookies please).
I am kind of at my wits end. She is lovely, loads of experience, and great at everything domestically, it just seems there's no end to the stuff she deems it okay to do/not do with the kids. I have gently laid down the rules, but then something else weird or new happens.... How is best to tackle this?