sorry,i don't know enought about computers to post a link..
and i of course thought this is another bit of junk that gives
knife owners a bad name but i did the post to bring it to the
attention of the group..

The wasp looks like a valuable survival tool in many respects:

Scenario: shark attack-pull the wasp, point the orifice directly at the shark, hit the button, and fly backward under rocket propulsion out of harms way: shark pursues, and runs into block of ice created by expanding gases. caution: may lose bathing suit in the process.

Scenario: Car fire: point orifice at fire, push button, and extinguish fire by force of gas, cold, and denial of oxygen.

Scenario: Attack by horseflies/killer bees: subdue the swarm with cold, and disperse with force of gas

This thing is a marvel-since we have determined in another thread that firearms do not in fact reliably kill people, we are presented with a great alternative-