I have never seen anyone hit a leg bone with a saw with one motion and buzz thru it,they had a nice set up in there but there is no way I'm flashing a sharp knife that quickly unless I want to leave a finger or two on the floor.I cut my hand deeply on the first deer I ever gutted. 3 days later I had a super high fever for 4 to 5 days, cant swear thats where it came from but I read later on that deer blood has something in it that can cause exactly these symptoms in the right conditions.I am now slow and methodical.