Delighted to find that Luke and Anna can both hit a ball he invites them to play doubles on the weekends, and sometimes of an evening after work. Like all social tennis, it is played with an underlying ferocity, the men volleying at the net as though their life depends on it and swearing under their breath. Nor is Anna immune to this manic athleticism, even if there is something comically grim in the way that Alan barks out the score after every point.