To defend a product in a liability case, you must convince a jury of technically unsophisticated people that you did everything in your power to design, manufacture, and sell a safe product.
A former engineer was severely injured when the front wheels of the tractor he was driving fell into a culvert. He had removed a heavy-duty, rollover-protection arch because it was hitting the branches of his fruit trees when he drove the equipment between rows.
Equipment-rental companies serve their purpose, but renters should be sure to get adequate training and documentation as well as well-maintained equipment.
A grinder blade exploded on start-up, injuring the operator. The history of both the grinder and the blade were unknown, and the blade was not a good fit for the grinder or the job at hand.