Salinas (plaintiff), a truck driver for Classic Dairy (defendant), sometimes assisted other Classic Dairy employees (defendants) in cattle-feeding operations. As Salinas straightened bales of hay dropped to the ground from a trailer, Salinas was struck by a falling bale of hay and was injured. Salinas brought suit against Classic Dairy; its owners, the Vierstras (defendants); and its employees for negligence in failing to provide safe working conditions. The trial court jury found in favor of the defendants on the grounds that Salinas has assumed the risk. Salinas appealed. The Idaho Supreme Court granted certiorari.