Extract from David Baddiel interview in The Guardian [link to full piece below]:
The child in you evidently likes toilet humour as much as the next child, if Head Kid is anything to go on …
I find myself unable, when I write a children’s book, not to have at least a little bit of toilet stuff, because I know that children just find it immensely funny. There’s a scene in The Parent Agency where the main character meets some prospective parents and they tell him he can say or do whatever he likes. The first thing he does is just say “bum, poo, fart, wee” over and over again. I read that to kids when I visit schools and they go mad with laughter. I mean completely mad.
Do you find it easier to write for children than to write adult fiction?
That’s a difficult question, and I know children’s writers get very angry if you say that kids’ books are easier to write. One way in which they straightforwardly are is that they’re shorter.