All this will come to an end, you see. It might just be my Scottish melancholia, but the very first day I found out I’d got the job, I started to feel sad that one day I would not have it; that there would come a day, in the not too distant future, that I wouldn’t be Doctor Who any more. And that is why I try really hard to get as much out of it as possible. Because one day I’ll just be an overweight has-been, trying to get a meeting with Jenna Coleman and being ejected from a Doctor Who Convention in Bolton for being drunk and disorderly. I mean, this is surely my high point, isn’t it?