I lived in a town called Alexandra for two years when I was of primary school age. There was plenty of space there to run around - and I liked running around - but otherwise there wasn't much to do. I used to go the football ground on Saturdays. I was too young to play for any of the teams but I helped out with the scoreboard. When a goal was scored I would fish around in the box of numbers for the right plate and hand it up to the man who would hang it on the scoreboard. Behind one of the goals there was a hill. One day it rained a lot and the side of the hill turned into an erosion gully, an intriguing torrent of gravity and mud. I wished I could have been sliding down the hill rather than looking for number six.