The first question, invariably, is, "Excuse me? You had a what where?" It's not a surprise, really. People may not be shocked if you tell them you managed a wank on, say, the train or even in a public restroom. But when you announce that you took part in an orgasm study and managed to reach climax in a functional magnetic resonance imaging (fMRI) scanner as it recorded the blood flow in your brain? Well, that's not something one hears every day.