It is five o'clock on Friday afternoon and car-horns start blaring in downtown Lusaka. The sound builds to a crescendo, as motorists sweep past the capital's main shopping centre.
Pedestrians whistle and wave support.
This noisy protest takes place at the same time, every week. Shop assistant, Sylvia and her friend, Mary, pause on their way home from work. They are wearing green ribbons - another sign of protest. Resolve falters Zambians, famous for their placid, peaceful ways, are up in arms. The man, who has incurred their displeasure, prompting a wave of public opposition, is the president, Frederick Chiluba.