A mineworker sacked for doing the Harlem Shake dance claims the group did not endanger safety during the stunt, abiding by requirements for helmets, portable oxygen and other measures.
A second sacked worker has emerged to give his side of the story, claiming the workmen had discussed safety before performing the 30-second dance routine in an underground pit at Agnew gold mine.
Up to 15 workers lost their six-figure salary jobs last week for participating and watching the dance performance, which is the latest dance craze to sweep the world.
The workers, including one employed by Hahn Electrical Contracting and up to 14 Barminco staff, were told they had breached safety and undermined Barminco's reputation.
A dismissal letter shows Barminco, which could not be contacted, banned the workers for life from working at any of its projects.
But the sacked worker, who would not be named over fears for his job prospects, claims the safety-conscious tradesmen had worn helmets, cap lamps, glasses and rescue devices containing portable oxygen to ensure they met workplace safety regulations.
The unnamed worker said the group performed the stunt on supported ground in the underground mine at 2.30am nearly a fortnight ago, adding music to the video the next day.
He conceded they had breached rules by taking off their long sleeved shirts during the dance.
But he claimed they did so to prevent Barminco's name from showing up in the video clip when it was posted on YouTube. The clip went viral after being posted on YouTube but then men were sacked within a week.
The man said some of the sacked workers had been with the company for up to eight years and were devastated at losing their jobs over 30 seconds of madness.
"It was 2.30 in the morning and we thought we just had to do something to get us going again," he said. "Sometimes you lose a bit of momentum at that time of the morning."
Premier Colin Barnett has weighed into the debate, claiming there is no room for skylarking at mine sites.
Aviation officials are investigating safety concerns after a group of Colorado college students performed the dance during a flight in the US.