When I was growing up, we had a 1929 Allis Chalmers that we had converted to a 6volt with a crank back up... one day my dad went to start it (it was parked in the pole barn with the front end point at the back wall (back end pointed out). Apparently, the battery was dead so he decided to crank start it...
Well, I was about 150 ft away walking toward the pole barn and all of a sudden, I heard this really loud crash and realized after a brief (note, I said brief) hesitation that my dad had started the tractor in gear (on the first crank). The tractor pushed my dad through the wall of the shed and nearly pinned him to a tree (he fell to the side outside the back of the shed. The tree (a birch) stopped the tractor and may of darn well saved my dad's life. Apparently, the crank had pushed into my dad's abdomen (amazingly, without breaking the skin) and pushed him through the wall of the shed (btw, this was a relatively new pole barn).
We ended up rushing my dad to the hospital and to this day, I am astonished when the doctor indicated that there was no abdominal bleeding/damage. He had a heck of set of bruises all over his abdomen and internal lesions for months/maybe years but he lived. At the time, he was in very good shape... It's the most frightened I've ever been about the possibility of my dad dying on the farm.
Oh yeah, this tractor looks to be about the same age (give or take a few years) as that old Allis Chalmers. And for the record, that was one heck of a tractor (even though it nearly killed my dad...or technically, he nearly killed himself /forums/images/graemlins/shocked.gif).