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The only sad thing for me was not being able to go further into other parts of Nigeria, it is such a vast country and obviously there are so many other states and interesting areas. I know many are facing different challenges and other opportunities, so it was a pity not being able to do that, but otherwise it's always marvellous coming here because people are so friendly. I'm always intrigued by the way so many of these young, for instance, are developing really interesting ideas that they can turn into businesses and things like that, helping to tackle some of the real issues we face, particularly around the environment and waste and goodness knows what else. Very ingenious characters.