a businessman suddenly changes direction multiple times while crossing the street, first heading straight then abruptly turning left toward oncoming traffic. He then spins around and walks backward before randomly darting right toward the sidewalk. His briefcase papers scatter in different directions as he moves unpredictably. Other pedestrians step back with confused expressions, trying to avoid his erratic path. A crossing guard reaches out uncertainly, unable to predict which way the man will go next. behavior that is erratic and unpredictable in direction