In 1914, he was involved in a serious road accident in France in which his son was killed. Legend has it that to escape the car wreck he was forced to amputate his own leg using a pen knife. Hospital records have shown, however, that while both his legs were broken, his left foot was amputated only the day after the accident. Later he often told all sorts of fantastic stories as to how he lost his leg and would shock people by interrupting meetings in his office by suddenly stabbing his artificial leg with a knife, letter opener or fountain pen.