Amid all the moralising, navel-gazing and skulduggery of the ongoing Barna-baby saga, is there anything quite as galling as twice-disgraced ex-Labor senator Sam Dastyari's contribution to the sludge.
Late on Monday night, the NSW Labor man broke his near-total public silence of recent months to offer some unsolicited advice to the Deputy Prime Minister. "Hey Barnaby, I went for a LOT less," Essential Media's newest executive tweeted. "Quit while you are behind. Trust me – it only gets a LOT worse from here".