I bought a spike knife years ago. It was hollow ground and the spines on every one in the batch were curved.Yes, it was at best a fun example of blacksmithing and I casually gifted it to this girl into J.R.R. Tolkien who loved the twisted handle with the black scale still present and the handy hammer but for cracking nuts.She was a vegan too.
I put a salutary edge on it for the last time and watched her go off to Middle earth, or somewhere thereabouts in Big Sur.
I heard through the grapevine some transient tried to assault her.
She really railroaded him with that thing!