Training for a marathon is tough. I feel like that’s an obvious statement as I’m not sure anyone goes into a marathon thinking it will be anything other than pretty bloody difficult, but you know, just in case. In fact, I’d go so far as to say that training for a marathon can (at times) be (almost) unbearable. An almost unbearable moment, or more accurately 3hrs and 2 minutes worth of moments, happened to me on Sunday, when I left the house planning to do my longest ever, 20 mile, run.