"There is a double-take as you enter a room, as if you are not supposed to be there. You are noticed and it is uncomfortable. Like walking into a pub in a town where you don’t live. There is confusion, as you are not the natural expected occupant of that role. I know this well; in many meetings, even though I am a professor, I have been mistaken for the coffee lady. Even now, students do a double-take when they realise I am the expert professor taking the class."