MULTIPLE Olympic and world champion Mo Farah was brought to Britain from Djibouti at the age of nine and was forced to do housework and childcare in exchange for food, he told the BBC. The 39-year-old Briton, who was born in Somalia, added his name had been changed to Mohamed Farah from Hussein Abdi Kahin in the fake travel documents used to fly him to Britain by a woman he had never met before. Once he arrived in the UK, the woman took him to her home in Hounslow, west London, and tore apart a paper with the contact details…