A mother is walking through the park with a small boy following behind, dribbling a football. A squirrel runs across their path. “I used to see red squirrels when I was little,” says mum. The boy isn’t listening. He’s doing commentaries to himself as he jogs along. ” There were lots of them at my Auntie Jo’s house,” she says. The boy kicks the ball against the fence and makes a crowd noise. His mum sighs. “They’re mostly grey squirrels now.”