A Good Morning Britain guest stormed off the show this morning, during a fiery debate.
Today the panel were debating the Tate Attacker Jonty Bravery telling his carer that he wanted to hurt people.
Bravery pushed a six-year-old boy from the 10th floor in the Tate Modern in London last August.
The boy, a French tourist, suffered life changing injuries, including a deep bleed to the brain.
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Bravery, 18, admitted attempted murder and is due to be sentenced this month.
Today Grace Blakely argued that it was down to a lack of funding and time that was to blame for the fact nothing had been done about his disclosure to his carer.
And coming back on that Iain Dale said: "I'm sorry but that's absolute rubbish, that is not what's to blame."
He was then shut down by Grace and the rest of the panel and he said: "Fine then. I won't speak."
Iain then removed his microphone and stormed off the set saying: "Right OK, that's it."
Hosts Kate and Ben were shocked and struggled to recover after his abrupt departure.
Kate said: "Well that's a shame we wanted to hear what you think."
And Ben said: "No No Iain don't go, we do appreciate everything Iain brings to the debate."
The debate continued, but viewers couldn't believe what had happened and took to Twitter in their droves.
Heidi Biddiscombe said: "Never did I think I would see someone storm off the GMB set with Ben Shepherd and Kate Garroway presenting."
@clarahelt said: "Wow! I’ve never see @IainDale Iain Dale have a diva moment before - but it just happened on #GMB!"
Neil said: "Bloke walking offset is the best bit of viewing I’ve seen on #GMB for ages."
StephenB said: "storming off #gmb is the laugh I needed this morning."
And Charlotte said: "Wow! Someone has finally stormed off on #gmb now he’s gone the other 2 are shutting up and behaving and actually waiting their turn!"
*GMB continues at 6am on ITV on Monday
