New Zealand First's Shane Jones explained the "conscious vote" aspect of some decisions in the House.
He said he would not vote for euthanasia and was not motivated to change the current abortion laws, although he firmly believed the choice for abortion should belong with the mother.
In strong terms, he also told the young men in the audience that too many teenage women in Whangarei were getting pregnant and carrying the responsibility.
"Shame on the boys," he thundered.
During an introductory precis of their parties' general philosophies and stances, Mr Holwell said the Greens were not in the centre, "we're in front".
He said the Greens were the leaders because they were "the brave ones", having started many "conversations" about social and environmental issues the other parties were only now beginning to talk about.
In his turn, Mr Grieve paraphrased the old Sir Winston Churchill adage: "If you're not a socialist when you're young you don't have a heart; if you're not a capitalist when you're old then you haven't got a brain."
Mr Grieve said 100 years of having a welfare state in New Zealand had failed.
Other questions included the candidates' and their parties' stances on education, immigration and the problem of homelessness and unaffordable housing.
In the mock vote, Mr Holwell won, then, in order, Dr Reti, Mr Jones, Mr Grieve and Mr Savage.
