I have one like that, it has a close shave story attached to it. Years ago i had need to split 50ft of garden hose to cover a fibreglass boat hull edge. I sharpened the lino knife & mindful of its wicked edge cut away from myself with both hands while standing on the hose to keep it straight.
All was going well until about halfway when it was losing its edge. It slipped out of the cut & swung up, Basically i stabbed myself in the forehead with the tip, wasnt a huge amount of blood but i didnt half have a bump. Lucky i didnt lose an eye.