Uber-successful artist Damien Hirst's feud with teenage street artist Cartrain has turned into a story of how a rich man used his power to bully someone who, after all, is just trying to emulate him. Presumably, what irks Hirst is that Cartrain used Hirst's famous diamond skull in a series of collaged portraits of the skull's creator. Hirst successfully demanded that all the young artist's works incorporating the diamond skull should be handed over, presumably to be destroyed.