I have a family wedding on a Thursday at the end of November, it is approx 200 miles from home. DS is not invited but my MIL promised she would have him for the afternoon, she only lives about 1 hour from the venue and we were popping him in on way down.She is a private part time further ed teacher, she has now rang us saying she changed one of her teaching sessions to a Thursday afternoon she did this in June and forgot she was having DS. I don't know what to do, all my friends work so I can hardly expect them to take a day off work.Have thought about a Mum at school I am friendly with but seems cheeky, My DH is going to ask her to reschedule her class and offer to pay any losses she incurs. She wanted to leave him with the manager of the centre, who I have never met while she teaches and got really annnoyed with me when I said I was not happy leaving him with someone I have never met. He is 9 years old and she has looked after him for two weekends in his entire life. He is her only granchild. If the wedding was on a Saturday I know either of his godparents would look after him. Whaddya think?