If there is one thing about the Greens that grates with other politicians, it is that party's holier-than-thou attitude to almost everything.
So there will be much glee around Parliament that the Greens are just like other parties in having mavericks who, having failed to get their way within the party, go public with the party's dirty laundry.
The difference is that until now the Greens have largely been better at keeping such ructions in-house.
At least that was the case until last week and the announcement by David Hay, who was ranked at No16 on the party's candidate list, that he would challenge Russel Norman for the male co-leader role at the party's conference next year.