Had our first Nanny for a few weeks who is fab, she is looking after dd during the Easter hols, ds is in school for a few days of the hols, as their hols are different, but dd (11 )is asking if her friend can come and play for one of the days, is this acceptable to ask our nanny to have one of dd's friends with her? she will probably be taking dd out for the day? She is very flexible but we are not sure of the protocol