My aunt is obsessed with her husband’s lost glasses. ‘I wake up at four every morning thinking about them,’ she says. ‘I can’t sleep.’ My uncle Trevor lives in a residential nursing home for dementia sufferers. My aunt thinks that one of the care assistants may have pocketed Trevor’s glasses and sold them on ebay. ‘They weren’t cheap,’ says my aunt. ‘They were over a hundred pounds.’ The glasses have been missing since Christmas. According to my aunt, they were the only pair of glasses that ever suited Trevor’s jawline or the shape of his face, and she likes the seam of gold through the sides. ‘He looks so handsome in them,’ she says. As far as everybody else in the family is concerned, retrieving the glasses would probably make minimal difference to Trevor’s quality of life, since h

