Just came across this story about a woman who fell off a horse and suffered a severely broken neck. Instead of being in shock or saying "ouch" like most of us, she went and just grabbed her head and got out of there. From the article:
She tried to get out of the animal's way as it galloped around after the fall, but when she tried to pick herself up, the horrified 26-year-old found her head stayed where it was.
Realising she had to move to avoid being stomped on, Ms Maxfield cupped her hands around her own head and lifted it into place to avoid damaging her spinal cord.
"As soon as I came off the horse I knew something was wrong. I went to get up but my head stayed on the floor,"
Crazy enough as that sounds, she's actually recovered and is back riding horses again. Awesome for her I say, but I'm still having to suppress the nausea from the thought of having to lift up my own snapped neck.