Prime Minister Jacinda Ardern and ACT leader David Seymour are teaming up for charity after she was caught calling him an "arrogant prick" in Parliament."A couple of people suggested parts of the idea, I put it together and suggested it to the prime minister and she got it immediately, so I think it's a great Kiwi ending to what could have been a nasty incident."Seymour told Checkpoint the budget frame was appropriate during a cost-of-living crisis.Amazingly Briscoes were actually having a sale, which I think is a good omen both for the whole project, the whole kaupapa."The remark - muttered to her deputy after a combative Question from Seymour on Tuesday, the second-to-last sitting day of the year - was picked up faintly by the debating chamber's microphone and preserved in the official Parliamentary transcript, known as Hansard."