After a long series of ignored letters , Australia indict Bart for fraud . The United States Department of State want to send him to prison in order to placate the Australian government , but Marge furiously object to this idea . The State Department then settle on having Bart publicly apologize in Australia . The family is sent to Australia and they stay in the American Embassy , which is fitted with all the comforts of their home country , including a specially modified toilet that overcome an exaggerated Coriolis effect . Then they start exploring the local culture .