I remember a thread a while ago about an au pair being "off duty" and refusing to answer the door to take in a parcel. We have an Au pair. Agreed to 25 hours over week, live in. How do you measure working time? Would I be unreasonable to assume that when you are living in the house you pitch in when needed even if not agreed to be "working time". If you are at breakfast and child spills something, would you expect au pair to help out cleaning it up? What ground rules do you set for working time?