Crimson - thanks for the heads up - I shall avoid the book and hope they do not feature that aspect in a TV episode.
When I was still working, an elderly widower, who was diabetic and nearly blind came into our office to ask if we had any volunteers who could cut his toe nails. Although, it was not within our remit I undertook to see what I could find out and discovered that health visitors, practice nurses and so on are not allowed to do this but must refer to the chiropodist but that there was a 6 month waiting list for him. I tried the local nail bars but they all said No Way!, then I tried the Red Cross who did provide the service at one time but were not allowed to do it any more either. However, they gave me a number for a very jolly lady who being RETIRED from the Red Cross, still had her kit and could do as she pleased. The pair got on like a house on fire - he got his nails cut and she acquired a dancing partner.
He never knew the nightmares he gave me with his vivid description of the state of his toe nails! Enough! Enough! Please change the subject now and discuss someone else's hangups I can readily cope with everyone elses'.