Working at no.10 whatever the weather (and boy did we have some storms in our time) is a privilege beyond compare. I used to literally pinch myself walking past the tourists through the Downing Street gates every morning, to remind myself how transitory it was, how much responsibility even a lowly aide like me had, and most of all never to take it for granted. When the music stops, it takes a chunk out of you, and you lose your bearings for a short time. I hope David Cameron and his team recover theirs quickly. I hope they remember the extraordinary honour it is to serve your country. And I hope they learn to cherish the freedom that comes from leaving no.10 and returning to the ranks of those they used to govern.