
Visible crew/equipment: When David's car gets stuck on the bus bumper, the next shot is of the bus' black bumper and the side of the car. At the top of the black bumper there are two people seen in the reflection. The person on the left turns and takes a step to the right.
Answer: As the title indicated this became a "duel." Once challenged, David got pulled into a fight mentality with the crazed truck driver to where his "road rage" pushed aside all logic and sense of safety. David became obsessed with defeating the "Goliath" opponent. Also, if he turned around and went home, that would have ended the movie.
raywest