The Guardian

At the Brussels dinner on 28 October attended by 27 EU heads of government or state, the presidents of the European commission and council, and the head of the European Central Bank, witnesses said Papandreou accused Merkel of tabling proposals that were “undemocratic”.

“If this is the sort of club the euro is becoming, perhaps Germany should leave,” Merkel replied, according to non-German government figures at the dinner. It was the first time in the 10 months since the euro was plunged into a fight for its survival that Germany, the EU’s economic powerhouse and the lynchpin of the euro’s viability, had suggested that quitting the currency is an option, however unlikely.