Getting past my early 20s, I feel a bit more maturity and responsibility about that stuff. You get a good feeling from doing something good. You see a kid and you make his day, you realise the power of it. Whereas before, I was like, 'That's cool, whatever.' But now, that's what I'm most appreciative of.
I used to go to work with Dad on the weekend. We'd drive past an indoor go-kart track every now and then, and we went there a few times. I was never tall enough, so I always left upset. I think I was seven when I was the right height, and I was like, 'Please let me have a go.' It was love at first sight.