A small girl screeches to a chaotic halt on her little blue scooter, one arm wrapped around the pole and her other hand fumbling for the pedestrian button, a foot holding the scooter in place. She has long blonde hair beneath a pale blue helmet, a sleeveless pink dress gathered with black at the waist, and trainers with neat white socks.

Her mother (daggy Sunday shorts and t-shirt) catches up and fusses but the girl has everything under control, the scooter safe behind with a hand thrown back to steady it, one knee bent and a heel in contact with the deck.

The lights change. The girl flings her scooter round and drives it forward, push after push to the middle of the road, then coasts down the other side with graceful little toe taps on the concrete.

Her mother scuttles after her.