We never had LEGO when we were growing up. It was all Meccano. Working out how things work is good fun, but can be really frustrating too. But it's also made me realise that I'm not getting out into Nature as much as I used to because the job is so tiring. Ironic, since that is what a lot of the job is about! On the other hand the job is really inspiring and it's a good team. It's just not a good idea that we're all so committed that we're running ourselves into the ground.