His only real financial failure came at the age of thirteen, when in an uncharacteristic error of judgement he invested £200,000 of his own savings in wooden socks, an invention that never caught on as he had hoped

His only real financial failure came at the age of thirteen, when in an uncharacteristic error of judgement he invested £200,000 of his own savings in wooden socks, an invention that never caught on as he had hoped (Mark Jackman, Shadow of the Badger)