'Actually,' he adds, his eyes twinkling, 'the deal nearly didn't come off for an entirely different reason. I'm very superstitious, and I've used a special Bvlgari pen to sign every deal I've done over the past 12 years, but during the M&S negotiations I lost it. My wife rang everywhere in the world that I'd been, trying to find it. Luckily, it turned up behind a desk. I wouldn't have signed anything without it.