Social satire has been around since people have been around.

I am a huge fan of 'Doctor Who.'

I used to have a silk dressing gown an uncle bought in Japan and when I came downstairs in it, my dad used to call me Davinia. There was never embarrassment about that kind of thing. My sister used to dress me up a lot. She thought I was a little doll.

It's easier not to make a particular joke in case it offends. But every joke will offend someone, and I've always believed that the audience is bigger than one person. The danger is that things will become bland.

I don't have a fear factor. Well, not much of one. And I'm willing to risk quite a lot - as a comedian, you're always risking a lot. You're risking failure, especially if you're improvising and going on TV shows trying to make comedy out of thin air. That is quite a risky business.

I've done panel shows, which I enjoy, and on those you're recording half-an-hour of TV and sometimes they film for two hours. But with 'Britain's Got Talent,' you're on camera for eight hours, with a large theatre audience watching - and in between you're being filmed for ITV2 as you eat your lunch.

Sometimes you meet people who can't swim. And I always think: 'Oh my God, that's extraordinary.' For me, it's always been a treat I just feel really happy in the water.