What were the chances?

http://savannahnow.com/latest-news/2009-12-23/us-80-reopens-after-pedestrian-fatality-garden-city-police-says This tragedy was almost certainly the result of what truckers know as a "high hook." The driver surely failed to get out of the cab - as DOT regs require - and check his hookup visually after backing up to the trailer. His kingpin was likely not actually locked into the slot where it belonged, but "high hooked" up over the front edge of the turntable hitch.