We know how it works. Australia will do anything to win at cricket, and sometimes England are no angels, either.
But after the euthanasia of fair play at Lord's on Sunday, the gloves are off. If the third Test at Headingley degenerates into a war of Mankad run-outs or the Aussies' specialist subject, bowling underarm along the floor with six needed off the last ball, why should anyone be surprised?
Australia are 2-0 up in the Ashes, but their margins of victory – two wickets at Edgbaston, 43 runs at Lord's - have been tight. Although they have been the better side, we now know they are scared of England's Bazball.