Well you can blow a freaking crowbar through your brain violently enough that it lands almost a hundred feet behind you and yet the lasting effect might not be

Well you can blow a freaking crowbar through your brain violently enough that it lands almost a hundred feet behind you and yet the lasting effect might not be much worse than a noticeable change in personality EDIT "I first noticed the wound upon the head before I alighted from my carriage, the pulsations of the brain being very distinct. The top of the head appeared somewhat like an inverted funnel, as if some wedge-shaped body had passed from below upward. Mr. Gage, during the time I was examining this wound, was relating the manner in which he was injured to the bystanders. I did not believe Mr. Gage's statement at that time, but thought he was deceived. Mr. Gage persisted in saying that the bar went through his head. Mr. G. got up and vomited; the effort of vomiting pressed out about half a teacupful of the brain [through the exit hole at the top of the skull], which fell upon the floor" [0] [0] Harlow, John Martyn (December 13, 1848). Passage of an Iron Rod Through the Head. Boston Medical & Surgical Journal. 39 (20): 389–93 sourced from wikipedia.