I don't mock things, which makes me more vulnerable to mockery myself. If you're cynical, you're protected from mockery. But I have to be nice. I don't think I have irony. A sense of humour, yes, but not irony.

Perhaps my favourite story is 'Le Passe-Muraille' by Marcel Ayme. It's about a guy who wakes up with a weird faculty that means he can walk through walls. He's a very shy clerk, and he uses it to get revenge, or vent his frustration.

At school I was very shy. I wasn't funny really.

When people are very original, sometimes they are original as a way to resist the mainstream.

If I have a good dream and I wake up happy. When I have an idea, I feel happy. Sometimes achievement and relationships can make me happy. I have a son and to see him grow - he's 22 now - that makes me happy.

It's a very American thing that everything has to be a business. Americans think... I like America, or I would not be here. There are great qualities to this country. But this sense that everything has to be a business is sometimes overwhelming.

Objectivity is very hard to achieve. It needs some research and patience. If you want to do something honest, you have to explore it a little longer.