A 68-year-old man came to hospital complaining of chest pain that had developed whilst he was running for a bus. The pain was crushing in nature and was located in the centre of his chest, radiating to his left arm and jaw. He reported using his ‘red spray’ and the pain subsequently resolved. His past medical history included angina, hypertension and hypercholesterolaemia. His regular medications were amlodipine 10 mg OD, ramipril 10 mg OD and atorvastatin 40 mg ON. He was an ex-smoker with a 20-pack year history and drank 25 units of alcohol per week. He was a retired security officer and lived with his wife and grandchild.