Don Nardella and Telmo Languiller must leave parliament.

They must quit, or be forced out, for the sake of the Andrews government, for the sake of public trust in politicians, and for the sake of common sense.

An audit has found what many in Parliament suspected: a) former speaker Languiller spent little time in Queenscliff to justify a second residence allowance and b) Nardella was stretching the truth, – auditor's called it "opportunistic" – when it came to living in Ocean Grove, well away from his Melton seat.

Both men have had issues in their personal lives but to bill taxpayers to spend time on the popular Bellarine Peninsula does not pass what the internal auditors call a "reasonable person test".