NMSFNO - if the shtf, there would be no more scrap yard warranty, and I've proven I can damage res-c... I fixed it with some gorilla glue, bit would rather go full tang if I'm fighting off Zombie hordes.

As far as self defense, no knife would be anywhere near the top of my list of tools. I'd rather carry a baseball bat. If I gotta get close enough to use a knife, i'm probably getting injured no matter what, realistically.