Art intervention Serpentine Gallery in London, where he exhibited "Away from the Flock" (a sheep in a tank). An artist poured black ink into it, and was subsequently prosecuted, at Hirst's wish. The artist's defence was that he thought Hirst would benefit from the publicity and one critic (Tony Parsons) said the artist's action proved that what Damien Hirst does is art. The exhibit was restored at a cost of £1000. A notable case of an unauthorised intervention—which did no damage, yet was still liable for prosecution—occurred at 12.58 p.m. on October 25, 1999, when two artists, Yuan Chai and Jian Jun
Damien Hirst of artworks in which dead animals (including a shark, a sheep and a cow) are preserved—sometimes having been dissected—in formaldehyde. The best-known of these was "The Physical Impossibility of Death in the Mind of Someone Living", a tiger shark immersed in formaldehyde in a clear display case. He has also made "spin paintings", created on a spinning circular surface, and "spot paintings", which are rows of randomly coloured circles created by his assistants. In September 2008, Hirst made an unprecedented move for a living artist by selling a complete show, Beautiful Inside My Head Forever, at Sotheby's by auction and