In Britain, you do your job. When you do an American TV show, there is a sense of being one with the crew, and there is a leadership element, which was a learning curve for me because it is very different culturally. In Britain, you just do it, leave and say, 'Thanks.'
What I find really interesting is to try and mix it up, to push myself and try different things. I don't want to stay in my comfort zone. I want to take risks and keep myself scared.
I know lots and lots and lots of vegetarians who think it's perfectly all right to kill animals for food to eat, but don't do it because they think all the ways in which it's done are wrong.