A statement from the UK Resuscitation Council reads: “Although there have been a few cases in the United Kingdom where a claim has been brought against a ‘rescuer’, there have been no reported cases at all where a casualty has successfully sued someone who came to his aid in an emergency.” It is better to attempt a rescue than to stand by, as every minute counts in sudden cardiac arrest. If you use an AED but a shock is not required (because the patient is not suffering SCA but, perhaps, a heart attack), it will never deliver a shock. This means you can use one safely and with confidence that you will not accidentally deliver a shock to someone who doesn’t need it.