Dear Mary: How do I tell my neighbours I’m too busy to stop for a chat?

Q. My parents are abroad for two months and as my flatmates in London are all, like me, working from home, I’ve moved to their country cottage to get some peace. This is an idyllic and very community-based village but one unforeseen problem has arisen. The house is at the end of a cul-de-sac lane and every time I nip out to do anything – post a letter, buy a pint of milk – I run into neighbours, each one requiring at least a five-minute chat.