I love telling stories. I love the intimacy between the writer and reader. When you write sketches it's over in two minutes. When you write a book the characters have to have a bit of emotional depth.
People think writing a children's book is something you could do in an afternoon but it's actually really hard.
I think most people that do comedy write for themselves. I don't think there is any other way you can do it, really. Otherwise it would be quite cynical.
Writing for radio really focuses the mind, because you can't rely on thinking "Oh, just pull a funny face at the end of this sketch." You've got to try to work on the words.