Gray (plaintiff) was a construction worker working with a crane manufactured by Manitowoc Company (Manitowoc) (defendant). The crane had a blind spot when the boom was lowered, resulting in the operator’s not being able to see part of his surroundings. Gray was struck by the crane because the operator could not see him. Gray brought a products-liability suit against Manitowoc, claiming that Manitowoc should have designed the crane with mirrors or cameras to ensure that the operator had full vision at all times. Testimony at trial established that this type of crane’s blind spot was common knowledge in the construction industry. The jury returned a verdict in favor of Gray. Manitowoc filed a motion for judgment notwithstanding the verdict. The trial court denied the motion, and Manitowoc appealed.