We have a similar man in Reading, who whistles really well and who always busks with his ginger cat present. In the winter the cat has a heated pad in addition to his usual blankets. He's another ginger boy and very loveable. Everyone makes a fuss of him and he clearly relishes the attention. His owner showed me some photos of him and his cat on holiday in Cornwall, where they have some friends. The cat loves the beach and the water and has been known to go surfing (there were photos to prove it!) wearing a little yellow life jacket.