Let's just say that the last time that I had to rush out of class - twice - to be ill, and then had to lie down on my office floor, was during my first month teaching at Bristol, many years ago, and that - for the life of a junior professor was lonely and stressful - had involved an unwise amount and combination of red wine and whiskey the night before. Nothing like that on this occasion, I promise ... but I felt just as dreadful. And I have no idea what caused it - bug? food poisoning? At least, unlike last time, my department chair didn't walk in to the office to find me lying supine - one of the more embarrassing moments of my working life, and one never again mentioned between us. Doubtless (let's hope) he thought I was suffering from some unmentionable Female Problem.