- Dan O'Donoghue (@MrDanDonoghue) June 11, 2018The moment of levity comes amid increased trade tensions between the USA and Canada.
While there was "common ground" in some areas, she said she was "disappointed" by the USA stance on trade.
Trump, who arrived rather late to the summit and left early was contentious and fractious right from the beginning, when he called on the leaders of France, Germany, UK, Japan and Canada to invite back Russian Federation to the fold of the G-7.
"There's a special place in hell for any foreign leader that engages in bad-faith diplomacy with President Donald J. Trump and then tries to stab him in the back on the way out the door", said U.S. trade advisor Peter Navarro.
During her statement, she confirmed that the countries had agreed to establish a new rapid response mechanism to share intelligence, co-ordinate action and develop new strategies to tackle the "growing threat" posed by Russian Federation.
"We all agreed in our discussions and our communique that we need to maintain sanctions on Russian Federation in light of its failure to fully implement the Minsk Agreements in Ukraine, and that we stand ready to take further restrictive measures if necessary", May said.
Well, if the Western group of nations cannot get used to the mercurial character of President Trump, what can be expected from other world leaders.
May told MPs: "Multilateral action is the right way to achieve this".
During a news conference, Trudeau had reasserted his opposition to U.S. tariffs on steel and aluminium, and vowed to press ahead with retaliatory moves on July 1.
"Everything I've heard on the trade front is that the Canadians, the Mexicans, our European allies. all have been extremely disappointed by the way President Trump has brought up the trade issues".
In her comments on Monday, May warned of the risks of a tit-for-tat escalation of the trade dispute.
The US actually contributes about a fifth of Nato's direct funding under a formula based on national income.