Around Parliament you get pretty good at judging which standing ovations are pro forma and which are spontaneous.
The one for Finance Minister Grant Robertson after yesterday's Wellbeing Budget was definitely the latter.
And no one was quicker to her feet than Prime Minister Jacinda Ardern.
This was a Budget that was hers as much as his under this modern political partnership. It has been years in the planning, as she herself acknowledged in her speech, while they were both spending their character-building years in Opposition.
It wasn't planned to the detail but the concept was simple. Integrate an orthodox