In central London's Soho district, Westminster City Council have decided to tackle the issue of public urination in a novel way: treating the walls with 'anti-pee paint' that delivers a nasty surprise to those who attempt to relieve themselves on it. The paint creates a water-repellent layer so that urine and other liquids splash back. A Soho resident welcomes the initiative but says more needs to be done to keep Soho clean. IMAGES AND SOUNDBITES