When the news leaked at the weekend that the government was considering telling those aged 70 and over to self-quarantine for 12 weeks to protect them from catching coronavirus, I began to worry about my elderly neighbours. How will they get essential supplies, particularly if the supermarkets’ home delivery services get backed up? What if they’re not on Netflix and have gone through all their box sets? Who will walk their dogs? It was time to summon up that famous Dunkirk spirit and create a network of volunteers willing to muck in until the crisis is over.