Re: Don't know if knives can be considered part of this...
"if you're into dangerous activities that can put you in contact with shark, grizzlies, or "infidels"... LOL !
But really, if you're into the habit of getting THAT close to dangerous animals. You have bigger issues than self defense ! It is a rather interesting and strange weapon. If I were diving I would have a powerhead (a long pole that can fire a 12 gauge shotgun shell on contact) and one of these knives for backup.
You who inherit the heavy privilege to serve in freedom's name, must brace for the battle surely to come.
-- Charlton Heston, 1923-2008