Oh, I can't sleep, whatever - it's a huge problem. The comedian's thing is you self-medicate with alcohol and knock yourself out - but obviously, that's not a long-term strategy.

When I started on the London circuit in 1989, nationwide there were about 150 to 200 people that were what you could call alternative comedians - that weren't club comics. Now, last year when the Laughing Horse chain of clubs held a new acts competition, a thousand people entered. So, there are 800 people more.

I'd quite like to write a book about comics, actually. But trying to write about comics as literature, which I don't think anyone's really done before. Sometimes they're more like fan books, and I'd quite like to write one about the Marvel universe over the last 50 years. It's an unprecedented achievement to create that length of continuity.

If a gig goes badly, my main worry is, 'Will these people come back?' Because that will affect my ability to pay the mortgage - but nowadays, I don't really mind what happens, as I think if it all goes wrong for real, you still have to go with it.