It’s perfectly simple,’ he explained ‘almost every morning I wake up feeling shit and think about packing in my drinking, my eating and my smoking. But then I remember my grandfather, who was in the Wehrmacht and died at Stalingrad, and I contemplate the terrible suffering and deprivation he must have experienced for months before finally being killed. Surely, I admonish myself, it’s up to you to experience all the pleasures he was denied? And then I reach for my cigarettes.’