Dude, are you sure you want to go out hunting a relative of weasels, badgers and wolverines that can weigh up to 20 lbs with a freakin knife?
Best of luck on that one, bro. That's like takin on a bobcat with a billyclub. I doubt you'd get close enough to one with a knife to actually stab it, and if you did, I'd reckon you might lose a finger. Or hand. Or arm.