I had a guy tell me the other day that he knew a guy that had a few farmall h and m's back in the 40's. He had a few young kids that could not reach the pedals. The kids really liked running the tractors. He would let them run tractors. They could not reach far enough to shut it off. He would tie a peice of rope on the coil wire and route it back the tractor and tie it around the kids waist. The kid would go out mowing and they if they fell off the tractor it should shut off kind of like a tether on a bike but it would have probably still ran over them. The kid was also instructed to pull on the rope if they got into trouble. The guy that was telling me this story said that the family passed this down and they were doing it up through the 60's.
I don't recommend doing this I just thought it was funny.
I don't recommend doing this I just thought it was funny.