The Red Cross was "over the moon" to hear one of its automatic emergency defibrillators had helped save a customer's life.
When a man suffered a sudden cardiac arrest at the Wainoni Pak'n Save checkout, staff provided CPR and used the store's AED to analyse the customer's heart and automatically deliver a customised shock.
By the time the ambulance arrived, the patient was already breathing unassisted.
Sudden cardiac arrest is the most likely cause of a fatality in many workplaces but less than 10 per cent of those experiencing one survive, mainly due to delays in treatment.