I'm always there at home thinking of Wallace and Gromit ideas.

I went back over the sketch books I'd filled at Sheffield for ideas and discovered Wallace and Gromit, except Gromit was a cat then. I made them into Plasticene shapes and started 'A Grand Day Out.' It took me longer than I expected.

But I think people see 'Wallace and Gromit' as something akin to an elderly couple. These two know each other so well. Nothing can split them apart.

When we first sold the Wallace and Gromit shorts to America, people suggested we get rid of the strange British accents and put clear American voices on them, and we held out.

Wallace and Gromit's contraptions are created purely for gags, but we all have the urge to invent - especially children. If they're bored, kids will make something from cardboard boxes, yoghurt pots, tape and elastic bands. Often, those constructions are the best.

As I get on and films take four years to complete, I tend to have a hankering for very short projects so you can move on to the next idea. It's the ideas I'm interested in. What comes out of your head.