It was only a matter of time before the high political stakes wrapped up in the Opposition's relentless efforts to secure the political scalp of Judith Collins would prompt a boilover of emotions in Parliament.
National MPs were going to endure only for so long the accusations of cronyism and corruption flung at them by Labour and New Zealand First.
Yesterday was the day National hit back - and, with the Prime Minister in red-hot form, hit back with some force. John Key stopped short of really dishing the dirt. But every time he got to his feet to reply to Opposition taunts, the fur really began to fly.
The catalyst for what was by far the rowdiest question time in Parliament this year was a change of tactics on Labour's part. Thinking there was little point in putting further questions to Collins when it was already widely accepted she had a conflict of interest in her dealings with milk exporter Oravida, Labour instead allocated its quota to targeting the Prime Minister to put the heat on him for not sacking Collins when the case for doing so seemed utterly conclusive.
The tactical change may have turned out to have been a strategic mistake, however.