The level of care is taken into account by the level of competence (Roe v. Minister of Health, 1954), the probability of injury (Bolton v. Stone, 1951 ), the severity of injuries (Paris v Stepney Borough Council, 1951) and the costs of avoiding risk (Latimer v AEC Ltd, 1953). In the case of Latimer v AEC Ltd (1953), the factory floor was slippery due to flooding. . The defendant spent money to hire contractors to dry and spread sawdust around the premises to prevent possible injuries from the aftermath of the flood. The court found that the defendant had spent reasonable costs, commensurate with the risk and that there had therefore been no breach of its duty to