And... I'm sorry, he *should* have been shaking becuase there is a PROBLEM if he was not aware of something pounding on his hood, something crunching under his wheel. I know the truck is big, bUTT... (I have had a similar experience as a driver - nobody was hurt but that was only because my brakes stuck -- some angel doing overtime literally holding the van back... I don't drive big things any more except under extreme duress...)