 Heat stroke...
 Niwajin-jutsu. Farmer and bone setting...(?)
I carry bandages in my wallet. Does that count? LOL
Preventing injury is like that proverbial ounce of something over a pound of first aid?
Yes, I know some Kappo...(Kappo katsu) also Red Cross certified lifegaurd swimmer, CPR and first aid.
... 
Next?
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"In all countries where personal freedom is valued, however much each individual may rely on legal redress, the right of each to carry arms - and these the best and the sharpest - for his own protection in case of extremity, is a right of nature indelible and irrepressible, and the more it is sought to be repressed the more it will recur."
James Paterson |