I got up from the sofa and removed my radio mic, knowing there were four whole minutes left in the segment. Well, they would have plenty to talk about without me, and my bad manners would add to the headline. I meant to walk off the stage then, but instead I stood there for a while and I heard whispering in the studio and a little scattered applause. For the longest time I wasn’t sure why. I could see that the cameras were still running, little red eyes peering at me as I stood, and then I realised that somehow, in the space between getting up to go and actually leaving, I had extended my clenched fist and dropped my head, as I had seen Tommie Smith and John Carlos do in 1968.