I have no intention of sticking my metaphorical hand, or the hand of anyone, into a metaphorical grinder. But I will point out that it was someone who thought

I have no intention of sticking my metaphorical hand, or the hand of anyone, into a metaphorical grinder. But I will point out that it was someone who thought about, and experimented with, sticking fleshy pieces into power tools, that invented the SawStop. :)