Nail Embedded in Man's Skull for 6 Days

[GameMaster]

http://www.cnn.com/2005/US/01/16/nai....ap/index.html

LITTLETON, Colorado (AP) -- A dentist found the source of the toothache Patrick Lawler was complaining about on the roof of his mouth -- a four-inch (10-centimeter) nail the construction worker had unknowingly embedded in his skull six days earlier.

I don't see how he could've not felt the impact or feel any pain when it happened. Must not be a lot of nerves in that area. Or it was just so quick and fast.