How good is a BAFA certificate and do I need to call and speak to the past employers even if they have given a written reference?.. my husband's very keen on me doing all kinds of checks although personally i feel quite satisfied after meeting with the aupair. She seems very nice. She has a BAFA certificate and a certificate in first aid. She has worked with small kids as a nanny and as a baby sitter. She already has a course for english she is attending here. She seems quite sorted.. what do you think??? also how many weeks are they supposed to take off for holidays.. and let's say we agree on 25hours for a week and if we go over 2 or 3 hours some week (for some reason) how much do i pay for that time?? and evening baby sitting... how late is acceptable and reasonable?... sooooo many questions!!