Nail Embedded in Man's Skull for 6 Days

[ZebraRampage]

I don't know if any of you have seen this, but there was this thing on tv where an old lady got stabbed in the back of the neck at a store, but didn't know or feel it, and she was just walking around with the knife there the whole time. It wasn't till she got home and her daugther saw it and pulled it out that she felt it there. I guess these things happen. Also, whenever you get a cut, but it doesn't hurt till you see it, must be similar to this.