 The leading Australian case is "Commercial Bank of Australia Ltd v Amadio", in which an elderly Italian migrant couple guaranteed their builder son’s business debts to the Commercial Bank.At the time the mortgage was executed, the bank manager was aware of the son's precarious financial position and knew that the Amadios, who did not speak English well, were not so informed, but did nothing to further explain the situation to them or suggest they get independent advice.In addition, the bank did not advise the Amadios that there was no limit on their liability under the guarantee; the Amadios believed their liability was limited to $50,000.