AN honest cab driver has returned $50,000 to a Middle Eastern businessman - after he left the small fortune in the back of his taxi. Shocked Nigel Lipscombe, 54, discovered bundles of cash - worth 30,000 - stuffed inside a rucksack abandoned on the backseat after dropping off a passenger in Cambridge, Cambridgeshire. But instead of pocketing the cash, which is equivalent of a year-and-a-halfs wages, kind-hearted Nigel drove his taxi straight to the citys police station. DM