Dunnes Stores cashier Mary Manning knew little about apartheid when, in 1984, at the age of 21, she refused to register the sale of two Outspan South African grapefruit under a directive from her union. She was suspended and nine of her co-workers walked out in support. They all assumed they would shortly return to work. They didn’t. Instead they became the central figures in a prolonged strike and boycott that captured world attention, a dispute waged at considerable financial and emotional cost to themselves. Striking Back: The Untold Story of an Anti-Apartheid Striker is Mary Manning’s story, told with the help of Sinead O’Brien. Mary and Sinead talk to Catriona Crowe.