Geez,
All this worry about cutting someone/hook blades for gutting etc

Back when I was first shown how to gut a deer, I was shown a VERY simple way to prevent from nicking the guts - works well for other situations too. I _WILL_ admit it works BEST with a fairly shot blade (say 4" or less)

Choke up on the knife - way up, and put your index finger along the back of the blade - basically, you cover the POINT of the knife of the blade with your fingertip! Your finger goes "inside" (towards what you don't want to cut)

No special blades needed - just a nice general purpose blade