This article discusses the liability of a defendant under tort law in cases of negligence and breach of duty of care. It includes a case study on Sam, a refuelling business owner, and the damages incurred by the plaintiffs. The article explains the three central aspects of tort law, duty of care, breach of duty of care, and damages, and how they are applied in the case of Sam. It also discusses the neighbour test and the factors that determine whether a defendant has breached duty of care. The article concludes that Sam is liable for the damages incurred by the plaintiffs due to his negligence and breach of duty of care.