This is for Ada Lovelace Day, celebrating women in science and technology.

When I started going to Skeptics in the Pub (SitP) in 2003, it was a small affair in a room over a pub near Borough, in London. I was sometimes the only woman there and even on a good night, we were really in the minority in a room full of men, some of whom were seriously lacking in social skills. I wanted to get more involved and, quite early on, I helped test a woman who wanted to claim James Randi's million dollars because she could find missing people with a pendulum and an A-Z. She couldn't.