A Liberal, a Labor and a Greens MP walk into a mall - and there isn't a furious fight or war of words.
Instead, the trio of Christopher Pyne, Penny Wong and Sarah Hanson-Young were in furious agreement on Sunday, urging South Australians to vote yes in the same-sex marriage survey.
The politicians helped launch the Adelaide portion of a national "get out the vote" push by marriage equality advocates.
Carrying "vote yes" placards, they urged Australians to return their survey forms as soon as possible.
"There's no point leaving it lying on the kitchen bench or stuck on the fridge," the Greens' Senator Hanson-Young told reporters in Adelaide's Rundle Mall.
"It won't make a difference there. But it will make a difference if you put it back into that post box."
Mr Pyne - a Turnbull cabinet minister - was confident the nation would return a yes vote and same-sex marriage could be legalised by Christmas.
One of their fellow SA federal representatives, Australian Conservatives senator Cory Bernardi, on Saturday told the launch of 'no' campaign they were on the right side of history.
My Pyne said those on the 'no' side wanted Australians to be frightened of the "otherness in our community".
"That has been a hallmark of ultra-conservatives for centuries, to sow fear in the community," he said.
"If Senator Bernardi or anybody else thinks that is the best way to get a no vote - by negatively campaigning - well good luck to them. But I'm campaigning on the side of positive social change."
Senior federal Labor figure Senator Wong said the majority of Australians believed in a fair go and the principle of equality.
"But we will only convert that goodwill into the outcome we all want if we campaign, if we get out the vote, if we vote yes and we all post our ballot papers (back)," she said.