Sky Sports Rob Dorsett finds Usain Bolt living life to the full ahead of his retirement from the track next year. After interviewing one of the biggest sports stars of our generation, we arrived at Norman Manley Airport in Kingston, ready to head home; exhausted, exhilarated, and braced, as ever, for the stress of customs analysing every serial number for every specialist bit of camera kit, before we are allowed to leave the country.With three microphones, a couple of lights, miles of cable etc etc, spread out on the table in front of us, I become aware of a small commotion 100 yards away from us in the terminal. I glance up, and Usain Bolt is surrounded by a small clutch of Jamaicans, pestering him for autographs and selfies. At 65 he stands out - head and shoulders above those crowded around him. He cant escape the attention. Ninety minutes later, we are queuing at the gate, ready to board, and theres a huge figure ahead of us in the same queue: black T-shirt, baseball cap, sunglasses. Its Bolt again, lining up with us, the plebs, to get on board.No pomp, no ceremony, no special treatment. No one carrying his bags for him, no bodyguards. Just a normal guy, about to get on a plane for a short holiday in Miami. Only this normal guy can run 100m in 9.58 seconds, and has won nine Olympic and 11 World Championship gold medals. Bolt won gold in a record time at the World Championships in Berlin in 2009 Thats my overriding memory of spending some time with the fastest man whos ever lived: how approachable, how friendly he is. When Lionel Messi arrived at Manchester Airport a fortnight ago, ready for Barcelonas Champions League match with Manchester City, all we saw was a tiny, hunched figure rushed through the awaiting crowds at arrivals, flanked by three huge security guards, while scores of fans waited and shouted in vain, with their autograph books and camera phones in waving hands. Bolt is master of a different sport, and is a different man.Im human, says Bolt, with a shrug. Sometimes Im in a good mood, sometimes Im not. But I try to always go out and put a smile on my face for the fans. I know it means a lot for them just to see me, to touch me and shake my hand. Bolts trademark celebration following another gold medal run at the Rio Olympics But its clear his huge fame has affected him. A naturally outgoing, sociable character - Yeah, Im a typical Jamaican man. I love reggae music and I love to dance. - its inevitable that hes had to curtail his social life.I try not to let anything bother me, he explains. I dont go out much, unless its to the clubs. Everyone wants to touch me, be seen with me. Ive got used to it. If youve followed my career, Ive always been laid back. Its who I am. Since I was a kid. Its just that since my career has got to where it is, its been noticed more.What has gone largely unnoticed, is just how hard this laid-back Jamaican works to remain at the peak of athletics. In a new documentary in cinemas at the end of the month, we see the reality of life behind the scenes: an elite athlete who has taken to the limit as he sprints over and over again, over a dusty field, sweat pouring from his face as he drags heavy weights behind him; he cuts his calf, as the spikes on his training shoes bite into his skin when he reaches full speed. Plaster applied - on he goes. Rob Dorsett gets up close and personal with Usain Bolt in Jamaica Bolt has promised he will retire after the World Championships in London next summer, and he says his body is ready for a break.(Training) is the hardest part. Without the training, I could go on forever. But the older you get, the more disciplined you have to be. And, honestly, I dont think I have the discipline. Its tough.Whats also been tough for Bolt is the tabloid fascination with his private life, since he completed the Treble-treble at the Olympics less than three months ago. When Bolt left Rio, he came straight to London, for several days and nights of high-profile partying. There were daily pictures of him in the papers and in social media, with groups of girls at various London venues.When I see him, back on board the plane bound for America, his girlfriend of two years Kasi Bennett, is sitting alongside him. Harmony restored? Its hard to tell from the body language.And so, after the Olympics, life has returned to normal for Bolt. Back in Jamaica, where he tells me he will continue to live, even after hes retired. Training. Working hard. Planning his race-schedule in the build up to the London World Championships. Bolt doing what he does best during down time at the London 2012 Olympics But after that? All he knows is he wants to be talked about in the same breath as Pele and Muhammad Ali. A future in politics then, or charity?Charity, definitely, he replies. But politics, no! People have been trying to get me involved in politics all my life, and its not for me. I dont want to coach (athletics) but I definitely still want to be involved with the sport.Seb Coe (the head of the IAAF) came to see me in Jamaica and said we need to find something for you to do; I will miss the energy of track and field. Anything I do will have to still be in the stadium, so I can feel the energy, and feel like Im part of the track. Usain Bolt talks of his plans for post-racing career... which dont include a move into politics I quickly get to see what he means. Im interviewing Bolt at the National Stadium in Jamaica, where in 2002, as a 15-year-old he announced himself into the world conscience by beating athletes three years older than him, to take gold in the World Junior Championships.My producer, Anton Toloui, suggested we take Bolt out of the formal interview setting, and