The level of standard 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 the harm (Paris v Stepney Borough Council, 1951) and the costs of avoiding the risks (Latimer v AEC Ltd, 1953). In the case of Latimer v In the case of AEC Ltd (1953), the factory floor was slippery due to a flood. The defendant spent money hiring contractors to dry and spread sawdust within the premises to prevent any injuries from the aftermath of the flood. The court found that the defendant had incurred reasonable expenses, commensurate with the risk and therefore there had been no breach of the obligation to