CQC and fire arm training.
I knew.
If it says Karate Kid, why is he taught Kung Fu?
Ya know, the Karate Kid has the name "Karate" but the dude teaches him Kung Fu...
Or better, when someone points a gun at you, just say something like:"Error 404, page not found".
+easier+faster+probably cheaper in the long run+anyone can use it+ jail