As a duty of care has been established, it must be considered whether the defendant (NAME) breached their duty of care to the claimant (NAME). To prove that someone has breached their duty of care it must be proven that their actions fell below the standard of a reasonable man performing the particular task, as asserted by Judge Alderson B in the case of Blyth v Birmingham Waterworks. He is expected to perform reasonably competently: Wells v Cooper.