His mother was popping him out while gasping in the gas chamber, but Yuri cut his own umbilical cord with his gums, and held his breath for an hour while all the adults and children perished. When the door was finally unsealed, he crept out undetected although leaving a bloody trail. Hiding in the concentration camp, he suckled himself on his own breast milk until the allies came in to the camp, finding this one lone survivor, still holding his bladder and bowel the whole time to avoid detection. He even had named himself and forged a certificate of live birth using his dried bris as parchment and teething blood for ink. What an amazing man! Trust me on this.