It's not every day you bump into Nelson Mandela. I had arrived from London via Athens and Nairobi on an epic Olympic Airways flight. I was exhausted, hungover and wondering how to safely get to my hotel in Hillbrow. All of a sudden there was a commotion and a group of six men with AK47 guns surrounding a small figure were moving swiftly out of the airport. It was the recently released Nelson Mandela, who was returning from his first overseas trip to Windhoek in Namibia. Everyone else in the airport seemed to be ignoring them, and there was no rush of journalists or photographers ready to greet them.