Dogs have had jobs ever since they were domesticated

Dogs have been bred to herd livestock, assist hunters, guard settlements, catch rats, track people, detect substances, lead the visually impaired, and pull sledges. They may even help diagnose diseases

Man’s best friend was domesticated, possibly in Siberia, when wolf cubs were captured there more than 20,000 years ago.

W S Gilbert, of Gilbert and Sullivan fame, recognised only two tunes. He said: "One is 'God Save the Queen', the other isn’t."

Michael Yeats claimed that his famous father, William Butler, knew that the national anthem was being played only because people stood up. Some individuals are considered to be ‘musical’; others are ‘tone deaf’.