Dear Swarda, this is a very good question. Being able to draw a line between working hours and free time is often very difficult. In your case, it is important to tell your au pair why you are taking her with you. Is it to give her the opportunity to have fun at the park? Will it be part of her cultural programme? Or is it because you need her to help you out with the kids? Tell your au pair why she is coming and try to find an agreement which suits both of you.