So his physician took some x-rays of Chojecki's head... and found a bullet nestled between his skin and his skull.
It had been there for five years. At the time Chojecki, now 35, thought that he had either bumped his head or been hit by a firecracker during a New Years celebration. But apparently the 22-caliber bullet came from a bullet that had been fired during the same festivities (note to self: stop firing guns at parties).
Read more about the heady case of Robert Chojecki here, including video depicting the x-rays and the bullet!