Prison reform groups and inmate advocates call it a protest. Authorities are more likely to call it a riot.
Either way, this week's mayhem at Waikeria Prison was the most prolonged and destructive stand-off at a New Zealand jail for decades.
The Waikeria disorder dwarfed a 2013 Spring Hill riot, when inmates drunk on home brew ran rampant and set fires but were brought under control in barely nine hours.
Over the generations, riots and protests have erupted at New Zealand jails for various reasons.
"Their plan was simple and involved a handgun, crudely made keys and violence," crime writer and sociologist Jarrod Gilbert wrote in the Herald.
"The two men released other inmates with an improvised key and an iron bar."
The central Auckland prison, at the time housing inmates serving time for violent crimes, erupted into fire and mayhem.
The "frenzied riot" gutted the interior but failed to permanently shut down the jail, author Mark Derby wrote in Rock College: An unofficial history of Mount Eden Prison.
Rioting continued for 33 hours, causing extensive damage.
"A cordon of armed police, warders and troops stood guard round the prison in the glare of hastily rigged floodlights," the 1966 Encyclopaedia of New Zealand explained.
"Firemen trying to control the blaze were met with a barrage of cutlery, bottles, bricks and furniture," according to a British Movietone-AP newsreel at the time.
Tear gas was used to suppress the melee.
By the time the riot was stopped, more than 40 warders and policemen had superficial injuries, the Encyclopaedia of New Zealand said.
RIMUTAKA, 2007
North of Wellington, Rimutaka prison staggered from one scandal to another in 2007.
The Herald outlined the cavalcade of catastrophes at the time. In March that year, 11 staff were stood down pending investigations into corruption and smuggling.
A Parole Board source on Sunday said Rimutaka had since made reforms and was now regarded as one of the country's best-run prisons and most effective at rehabilitation.
NORTHLAND, 2012
At Northland Regional Prison near Kaikohe, a riot squad was deployed after inmates damaged cells and lit fires.
The entire prison, known as Ngawha, was locked down.
The riot broke out a month after a confrontation between guards and inmates led to one officer being hospitalised with minor injuries after a blow on the head.
The Herald at the time reported Corrections staff from Auckland were sent to the prison, including highly trained advanced control and restraint unit members.
Kaumātua Mac Anania later told RNZ remand inmates were responsible for the riot.
He said remand prisoners were often agitated because they were smokers who suddenly found themselves in prison going cold turkey.
SPRING HILL, 2013:
In the winter of 2013, some inmates got drunk on homebrew and lit fires at Spring Hill jail near Hampton Downs, between Hamilton and Auckland.
As word of the fiery uprising filtered through to other jails, Paremoremo maximum-security inmates jammed a gate and tried to start a fire.
And unlike this week's Waikeria mayhem, the disturbance at Spring Hill was brought under control in less than half a day.
In a review after the riot, Corrections said the Spring Hill disturbance was the biggest, most destructive case of "concerted indiscipline" in any jail in the 21st Century.
And the inquiry found parts of the prison's management team were divided and dysfunctional.
The Spring Hill riot caused $10 million in damage.