breach, foreseeability of risk, formulation of risk, negligence, obvious risk, where council did not take reasonable precautions advised, where council was independently advised to take steps to mitigate risk, where the Australian playground maintenance standards applied, whether height differential between surface in a playground gave rise to a reasonably foreseeable risk of harm, whether height differential was readily discernible
breach of duty, duty of care, formulation of risk, nature strip, negligence, postal officer, reasonable care, reasonable precautions, reasonable response to do nothing, users of public right of passage
breach, common knowledge, constant supervision, duty of care, failure to enforce own rules., formulation of risk, lifting heavy weights, negligence, not insignificant, obvious risk, reasonable precaution, system of inspection