Danny Ruark, a machine operator, was working on track maintenance using a hydraulic drill to drill holes in rails. While at work, he clamped the drill to the rail, drilled a hole, retracted the drill bit and unclamped the rig from the rail to move it to the next spot.
However, one day while at work, after finishing a hole, as he bent down to turn off the drill, he heard a boom. Hot fluid sprayed from a broken hydraulic fluid line and onto him, including into his eyes.
He filed a lawsuit against Union Pacific under the Federal Employers Liability Act, 45 U.S.C. Sections 51-60, using the theory of res ipsa loquitur (“the thing speaks for itself”), a legal shortcut in proving negligence.