My mum is a doctor and a teacher. As in, part time practicing MD (mostly women's health). She gets a decent salary teaching in the private sector, but only real

My mum is a doctor and a teacher. As in, part time practicing MD (mostly women's health). She gets a decent salary teaching in the private sector, but only really does it because she likes teaching and hates working with sick people. In the public sector, they offered her a very low salary, and told her to get her paperwork together to prove she was senior enough (after over a decade of teaching, but she hadn't kept every pay stubb).