Our junior school was surrounded by fields, one of which became the winter home for locally famous fairground operators. As a result, we shared our classrooms with several young gyppos. Having led the exciting, criminal, sexually active lives of the fairground deviants they were, they provided us with sex education at a tender age. One of them convinced us all that girls produced spunk, just like boys, and that the smell on his fingers would proove it. This sounded proposterous, but his fingers did indeed smell spunky. It didn't occur to me that this was probably because his older brother had got to his younger sister first.