It's Melbourne Cup Week, and the Senate doesn't sit again until next Monday, so let's start with a Cup story -- prompted by Gina Rinehart's unfortunate, and unseemly, tumble down the stairs when exiting the Emirates marquee.

In her defence, if there are any snickers about John Kerr or a "tired and emotional" state, I’ll admit I held the guard rail while descending because those temporary stairs were steep, deceptive and tricky. And I was drinking non-alcoholic wine I'd had couriered in.