If you are going home after over-indulging slightly in the famed night life of Leeds, and you get the impression that the street furniture is mumbling to you in a curious language, do not panic - your are probably near to a blind person.The RNIB has launched a 'talking lamp posts' scheme to help blind and partially sighted people navigate around the city. Users will be issued with a card, which will automatically trigger a message when they are in the vicinity of one of the 50 special units, telling them where they are and giving directions to nearby places of importance. Volume will vary with the time of day. And depending on what kind of card the user has, the lamp post will address them in either English, Gujerati, Urdu or Bengali. Enlightening.