Dear Mary | 23 March 2017
Q. We had some people up from London for a very long weekend. We put on an extra-special do, costing a lot of money (even hiring an after-dinner concert pianist), all for the benefit of one particular couple. This was eight weeks ago yet — despite being of the age group who knows how to behave — they didn’t write a thank-you letter. My husband has been grumbling and I worry he might use this discourtesy to curtail any further entertaining on this scale. What should I do? — C.P., Blakeney, Norfolk A. Email the couple saying you found one of those annoying Missed Delivery cards, dated seven weeks ago,
