Dear Mary: What’s the best way to squash a bore?

Q. Two acquaintances of mine have somehow inveigled their way into my dining circuit. They are men who, despite privilege and early promise, have made failures of their lives, but my goodness they both believe they have a story to tell. It’s not just tedious, but they bore with a ferocity that feels ideological in nature. After the last occasion I was determined to sort them out but was restrained by my friends who claimed they were basically good men. I know the dinner-party bore is nothing new but I wondered if you had any fresh ideas on how, with a degree of politeness, such people could be tempered and defused.
— Name withheld, Epsom

A. You should not try to gag these particular ‘bores’, who sound like the wrong generation or type to opt for professional counselling and hence may be unwittingly using dinner parties as opportunities for talking therapy. Take a more charitable view and listen patiently to their lengthy stories as they speak in metaphors and grope to find clarification about why they took the paths in life they did take.