Presented with the 5.6mm projectile, the man recalled he had received a blow to the head around midnight at a New Year’s party “in 2004 or 2005”, but had forgotten about it because he had been “very drunk”, a police spokesman said.
“He told us he remembered having a sore head, but that he wasn’t really one for going to the doctor,” the spokesman said.
At the link, you can see an x-ray image of the man's head.
Link | Photo (unrelated) via Flickr user JinglyJon used under Creative Commons license