I have just followed Sir Humphrey’s advice and placed two specific motions on the agenda of a committee meeting after the Chair had several pot shots at me (by email, silly man). The pot shots were in response to my daring to complain to NSW Fair Trading about a lack of proper meeting process (making decisions on non-agenda items mostly).
The next meeting is a month away so will not know the outcome until then, but in the meantime the behaviour has stopped and several committee members are rather red-faced and embarrassed and they are now buckling down to deal with my complaint.