At a red light in Arizona, a car sideswipes the door on another driver's vehicle during a heated road rage encounter. Two drivers get into a yelling match as they attempt to squeeze by each other on a narrow street in the Boston suburbs. In Florida, a brave motorist intervenes during a road rage altercation. A minor fender bender in Austin gets out of hand when one driver throws a punch. In Australia, a double length semi loses control while heading down a busy suburban street.