Back when I drove a big truck, the company we serviced was a steel processing outfit and I got to witness a 'slit coil' of steel falling over on an employee. Not pretty and it literally squashed the employee and resulted in instant death. Like squeezing toothpaste out of a toothpaste tube kind of but much more nasty. The slit coil was about 1500 pounds and about as high as a regular tractor tire and it happened in seconds. Once it went from vertical it went quick. Helluva way to die. Same applies to a loaded tractor tire.