Surviving a nuclear bomb is pretty impressive. Surviving two nuclear bombs is bloody remarkable.
The Guardian bring the story of Tsutomo Yamaguchi, the only known survivor of both atomic bombs dropped on Japan at the end of the WW2. He was on a business trip in Hiroshima on August 6, 1945 and suffered serious burns. He returned to his hometown of Nagasaki the following day, in time to catch the second bomb on August 9.