Wasp Injector Knife

  Just saw one of these described on TV last night. Wicked killer right there:
http://gadgets.boingboing.net/2008/06/16/wasp-injector-knife.html

 Has a CO2 cartridge in the handle and a hollow channel within the blade and he opening at the tip, Stab shark press button, and 850PSI of CO2 instantly released and expands within shark, thus killing it!

Saw the same thing on tv last night too.... 

really? you wont even see the shark coming
much less have time to take it out of the sheath and stab it
while you are in the air after getting hit!

Would work ok above water, it's benefit is below water ... deepier is better since the expansion of air is greater at depth.  Ideal for scuba divers mostly.

Boy, I BET IF YOU INJECTED A SALMON OR HALI NEXT TO THE YAK, YOU COULD BLOW THE Filet off and never touch the fish!!!! I don't ever want to get that close to a GW... Might as well stab a chevy going down the freeway...

The tv show I was watching showed them blowing up a watermellon.  Not sure about you, but I can't remember the last time I was attacked by a rogue, underwater watermellon .... it did the trick though!

And if you fall off your yak with no PFD you can stab yourself in the ass and float to the surface.

 
 

And if you fall off your yak with no PFD you can stab yourself in the ass and float to the surface.

 

And if you fall off your yak with no PFD you can stab yourself in the ass and float to the surface.

LMAO!!!!!!!!!!!

I saw one of those on Law and Order or NCIS.