A bank does not owe a duty of care to customers to train staff always to obey an armed robber's instructions during a robbery. The bank's lack of practical control over the criminal, even indirectly through its employees, the generalised nature of customer vulnerability, and the existence of conflicting duties to employees are antithetical to the imposition of such a duty. Even if such a duty existed, training staff to inflexibly obey a robber's instructions is not a precaution a reasonable person would take.
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