I happened across a knife by Gerber that is intended for rescue applications where seatbelts, parachute straps, etc. might need to be cut away quickly, and might be wrapped tightly around an arm or leg. I was just wondering if they might have applications for spearfishing. Not to replace a more utilitarian knife for dispatching fish, etc., of course. But these are small, and seem like they might be a safer choice if you were entangled in mono, for instance. They might be easy to carry on the arm, or a small chest pocket.
They're small, at just over 4" long. And relatively cheap, at around $18. Thoughts?