I have a really disgusting picture of my hand that I won't post from hitting a stump with my mule while I was going probably too fast and looking behind me to see which way the log I was dragging was going. It jerked the wheel, jerked the suicide knob out of my hand, and the suicide knob bracket smashed my index and middle finger knuckles wide open.

As wildhobbybobby said, PS wouldn't help, and in my case probably be even worse because I'd probably still use a suicide knob and drive it even stupider than I do now.