The Sinn Fein chairman yesterday responded bitterly to remarks on Friday by Mr David Trimble that the Sinn Fein leadership was giving a false impression that the Belfast Agreement did not demand paramilitary disarmament.
Mr Mitchel McLaughlin claimed comments by Mr Trimble, that Sinn Fein was using "Nazi propaganda tactics", represented another attempt on the part of the Ulster Unionist Party leader and First Minister to exclude Sinn Fein Assembly members from the shadow executive.
The Sinn Fein chairman said Sinn Fein representatives would not react to his "provocation" by "walking away".
"David Trimble has used every trick and subterfuge in the book in his attempts to exclude Sinn Fein.
All have failed and so too will his latest attempt to provoke Sinn Fein in his use of intemperate corner-boy language.
"Sinn Fein has no intention in either allowing David Trimble to impose a unionist veto regarding Sinn Fein's democratic right to full participation in the Assembly, including executive positions.
Mr McLaughlin added: "If David Trimble's prevarication and insulting language results in the collapse of the Assembly, let me guarantee him that Sinn Fein will not be going away."
An Ulster Unionist Party Assembly member, Mr Sam Foster, also increased tensions between the two parties by accusing Sinn Fein of contriving to wreck the Assembly.
"It is evident Gerry Adams and his party don't like the Assembly except for the trimmings, so their aim is to try to destroy the Assembly but put the blame on the constructive party in Northern Ireland, which is the Ulster Unionist Party."
Mr Foster described the Sinn Fein president, Mr Gerry Adams, as a "wretched man, posing in vapid vanity, mouthing resounding rottenness with a super-abundance of concealed foulness prevalent in all his actions and pretence".
As the exchanges continued between the two parties, ein and the Ulster Unionists, Mr Billy Hutchinson of the Progressive Unionist Party (PUP) has accused Mr Trimble and Sinn Fein's chief negotiator, Mr Martin McGuinness, of endangering the whole peace process.
Speaking on the BBC's Inside Politics programme, the Assembly member for north Belfast said both men appeared to believe that they could "win" on the decommissioning issue.
He said Mr Trimble had "painted himself into a corner on the issue" and would lose the leadership of his party if he moved on the setting up of an executive including Sinn Fein without the handing over of IRA armaments.
Mr Hutchinson said there was little chance of IRA decommissioning without Sinn Fein first being included in an executive. "The whole scenario that was set up during the Belfast Agreement was one where there was no winners and there was no losers. It was a draw," he said.
Meanwhile, the publication of an IRA calendar depicting a different image of terrorism and war on every page caused outrage yesterday among Northern unionists.
Mr Jeffrey Donaldson, the Ulster Unionist MP for Lagan Valley, said the IRA's "flaunting of its hardware" was a "sickening reminder of the potential for terror that still exists within the republican movement and the IRA".
The "Republican Resistance Calendar 1999" is on sale in hardline republican areas of the North and is said to be a collector's item in the US. Pictures of gunmen in balaclavas posing with an array of weapons, from machine-guns to rocket-launchers, are featured in the publication.
"I think the calendar, along with the thinly veiled threats recently issued through Republican News, demonstrates that the IRA is still wedded to violence," Mr Donaldson said.