Do you know Rufus? If not, you should. He's the amazing harris hawk that for many years has been set loose in Centre Court at Wimbledon to scare away pigeons before spectators arrive. (He's so famous that it caused a minor kerfuffle when he was stolen a couple of years ago.) Now, Stella Artois profiles him in a new execution of a campaign, called Perfectionists, about those who go the extra mile.