A few years ago, I travelled Africa on the back of a big Bedford truck. One of my most wonderful memories was of a particular afternoon driving through Uganda towards the capital, Kampala. Every person we drove past waved at us, calling out an excited hello as we waved back. Children ran after us, laughing, pretending they could catch up. One car even drove alongside us so they could pass bananas to us in the back – a gift from an incredibly giving people.