Rather you than me Debbie!
She sounds a lot like the scout leader at the sea scouts that our boys used to go to. She took over when no one else would do it, and it was a very small group and I think that her motivation for doing it was to give herself a social life but she expected everyone else to give up as much time as she did. She had one child and didn't work and being leader became, and still is, her life. The more involved she became, the more she expected from others and she was rather pushy and a number of people who'd volunteered for years left. We went along to a meeting once and by the time it was over John had been voted in as Treasurer and I was Group Secretary - but then we were the only parents who turned up so there wasn't any competition
She turned up at our house one day with t shirts for the boys, cheap and nasty embroidered polo shirts to be worn at meetings. They never wore them because the stitching was scratchy but she gave me a bill for £20 for them and we'd never asked her to get them for us. Tom was due to leave scouts anyway shortly after that and Joe had just gone from cubs to scouts. Joe was going to have Tom's hat rather than us buy a new one as the sea scout hats are expensive and Joe was losing interest by that time so it seemed silly to buy a hat and then have him leave and he didn't need one for events before Tom left anyway. However, she took it onto herself to buy one and passed it onto us with a bill for £45 (and we still owed for the unworn t shirts). She said he'd need it for the St George's Day parade in April - this was late November! That was the final straw and the hat and t shirts were returned to her and the boys stopped going.