“Self-destructing – in rock, in public, in fact anywhere – is not good for the human spirit, not to mention the lungs, liver and kidneys. Artistically, it’s best approached the way David Bowie did it in the mid-1970s. His cocaine addiction turned him into a withered stick-insect figure of a man but also inspired the best music of his entire career. Then he sorted himself out and became the golden-haired survivor we know and love today.”