Artist Ben Wilson continues to paint on a piece of discarded chewing gum as he is questioned by Police Community Support Officers on the Millennium Bridge, in London February 28, 2012. Wilson has painted miniature works of art on discarded chewing gum in various parts of London and Europe over the past seven years in an effort to "turn something some people would find disgusting into something artistic and beautiful," he said. He chooses gum splatters with unusual shapes "to allow art to happen in a random way." REUTERS/Finbarr O'Reilly (BRITAIN - Tags: ENTERTAINMENT SOCIETY)