No, not the name of a pop-group (although it might be quite a good one), but an episode from my early life. In later life I’m sure people had me in the category of those difficult women I wrote about last week, but by and large at school I was a goody-goody who (as my mother continued to say long after I’d become a professor) couldn’t say boo to a goose. I was, in general, not one for breaking school rules, unlike those who will remain nameless who put potassium permanganate in our scho...