I was going to write a light and fluffy piece this week, but my sciatica's playing up and I'm in a certain amount of pain, which has made me think about what we write and how it makes us feel. My friend Gary McMahon said the other week that most of what he writes hurts him in some ways or other (if you not read Gary's stuff, you should, but be warned: it's very bleak), and this pain certainly ends up on the page. I get the impression (although I may not be right) that Gary uses his writing...