I was picking corn yesterday,going up a pretty good sized hill and the top of the hitch broke right off the tongue of the picker. The PTO pulled apart. I had 2 ropes hooked to the center link on the tractor which was chained up with a small chain. The chain let loose,but not before the rope to the draw pin in the wagon pulled and unhooked the wagon. That took off down hill backwards doubling speed about every half second. It started turning more and more til it completely turned around and started right back up hill from the momentum. The hoses popped out of the couplers,but one of'em broke a chunk of casting out of the cylinder before the coupler broke away. No other real damage,but I was sure glad there weren't any kids in the wagon and nothing or nobody behind it.
You just never know.
You just never know.