Dying. Dying is my greatest fear, because apparently when you die you've actually got to be there, there's no way of avoiding it - and I'm not consoled either by the fact that nobody gets out alive.
I happen to be very happy. I've been happy for many years now, and rather selfishly I don't want it to stop. Soon I'll be 70 so something terrible could happen at any moment. I hope that when disintegration or heart attacks or whatever thing happens - I think about this a lot - I hope that I'll be brave, and maybe witty as well.
Do you ever practice your final last words?
I've got my own gravestone ready. Lots of people have got pictures of my gravestone and I think I might have written 'I'd like a second opinion' but that's only to cheer people up a little bit. Otherwise I think I'd have to say, if I was to go tonight, which is very likely in this temperature, I feel like Captain Oates, "I wouldn't have missed it for anything".