When my mother died last year, her small 13-year-old sheltie, Nutty, came to live with us in our London flat. I knew it would be difficult to keep a dog in town, but it was a terrible shock to discover how anti-dog the city has become. While taking him out and about on my daily rounds, I am often booted out of shops. In the bank, the chemist, most boutiques, the post office and department stores, it is No to Nutty. Even in our local garden square, dogs are forbidden, even if I have a poop-a-scoop and Nutty’s on a lead. I was recently refused entry to a bus, which I now know is illegal although I wasn’t sure enough of my ground to complain. It’s ridiculous: Nutty is far smaller and less of an obstacle than a child’s buggy.