A radio announcer was forced to turn off the microphones of Malcolm Turnbull and Anthony Albanese during a heated on-air spat, in which the politicians hurled names and accusations of lying at each other in the final days of the election campaign.
Mr Albanese, the Deputy Prime Minister, branded the Coalition's communications spokesman "Mr Fraudband", but not before Mr Turnbull claimed his on-air sparring partner would be "struck down by a thunderbolt. You are telling the most shocking lies".
So determined was the pair to rubbish each other's policies that Tom Tilley, the host of Triple J's Hack program, was forced to repeatedly fade out their microphones on Thursday afternoon.
Not even that was enough to stop them.
"Oh, still going," Tilley quipped when, after several moments, he turned up their microphones only to find they were still raging away.
The parties' opposing policies on the National Broadband Network fired up the duo to the point that civility went out the window.
Mr Turnbull said on air: "We said the project [the NBN] was going to take longer, and it is certainly doing that. We said that the costs were going to blow out, and they certainly are. This is why, they've just had to ..."
Mr Albanese: "But they're not."
Mr Turnbull: "Oh Anthony, you cannot ..."
Mr Albanese: "Well, they're not."
Mr Turnbull: "You will be struck down by a thunderbolt. You are telling the most shocking lies."
Mr Albanese: "You just can't make things up Malcolm, you just can't make things up."
MT: "Well hang on, OK, well just answer this question ..."
Mr Albanese: "Oh, Malcolm's in charge now. Malcolm, Malcolm, Saturday's the election mate, you're not in charge yet, Tom is."
At that point, Tilley faded out their microphones.
But when he returned, Mr Turnbull was still firing away.
"This is the most breathtaking falsehood I've ever heard from you. You know the contractors have re-signed contracts," Mr Turnbull said.
Mr Albanese responded by calling him "Mr Fraudband".
The one thing the leaders could agree on was their wardrobe choice.
"At least we agreed on tie choice," Mr Albanese tweeted later, alongside a photograph of the pair in the Triple J studio both in dark suits and yellow ties.
As it turned out, the Coalition later made an embarrassing backdown from a commitment that Mr Turnbull had been spruiking in the radio segment.
Mr Turnbull had said that, under a Coalition plan, Australian mobile phone and internet service providers would be required to censor "adult content" on the internet, unless users opted out.
It was part of the Coalition's $10 million "Policy to Enhance Online Safety for Children", which seemed to resurrect an Australian internet filter.
"What [our policy] does is essentially install that software either in the smartphone or in the modem as a default which you can switch off, but then that's at your call," Mr Turnbull said in the segment.
But by Thursday evening, Mr Turnbull announced the policy had been changed so that users would have to opt in if they wanted the filter.
"All I can say to you is, mistakes happen," Mr Turnbull said.
"I read the policy for the first time when it was released this afternoon.
"I defended it as best I could and then as soon as I had an opportunity to ensure that it was withdrawn and corrected, I did."