Q. A neighbour, a wonderful old friend in his late eighties, is a marvellous raconteur. As a family we have enjoyed his company for years. Our problem is that our children have entered their mid-teens and become pompous and intolerant. When we entertain at lunchtime they and their friends ruin the atmosphere by trying to gag our friend, complaining that his remarks are racist, homophobic, snobbish — the works.