I have a staff meeting tomorrow. We have meetings every Monday. This meeting was due to be led by the (lovely) deputy head but now he's not going to be in school do is going to be led by the HT instead. She's usually ok BUT has a bee in her bonnet about people missing stuff because of their own DC. I have to get my own kids to a concert ( they are performing) for 4pm which would mean leaving the meeting pretty much as soon as it's started. Would you
A) tell her up front (last time I had to leave something early because of DC her response was "no it's not ok, but there's not much I can do is there?"
B) invent an emergency and HAVE to leave without giving up-front notice
C) something else I haven't managed to think of yet.