At the end of your career, you go, 'I'm gonna be able to retire undefeated and be one of the very, very few people in history to do it.' People were saying I should try and get to 50-0, but my number was 46 - that was it. I could have kept trying, but one loss would have spoiled everything.
It's not just a trainer - as a man, my dad was unbelievable. Even outside boxing, he was my friend as well. We were boxer and trainer in the gym, but as soon as that bell goes, we'd have a cup of tea, and we'd go on about normal life. We would just leave that bit behind. That's how we kept going.
I can't understand it myself - how nervous I was when I took the floor for 'Strictly Come Dancing.' I walk out with 50,000 people gathered in the Millennium Stadium to fight Mikkel Kessler in the unification fight for the super middleweight division in 2007, and I feel great... and here I am, wearing tight pants and Cuban heels, and freaking out.