Australian parliaments are notoriously rowdy, and the Speaker frequently exercises the disciplinary powers vested in them under Standing Orders. The Speaker may summarily order a Member to excuse themself from the House for one hour. For more serious offences, the Speaker may "name" a Member, saying "I name the Honourable Member for X," following the House's convention that Members are always referred to by their electorate. The House then votes on a motion to suspend the Member for 24 hours. (The House also had the power to permanently expel a Member, but this happened only once, in 1920: the member was Hugh Mahon. The House no longer has the power to expel a member from membership of the House under Section 8 of the "Parliamentary Privileges Act 1987".)