An appeaser is one who feeds a crocodile, hoping it will eat him last.
Martin Schulz, the German leader of Europe’s Social Democrat MEPs, the parliament’s second biggest bloc, said Mr Cameron’s promise was “nonsense” and the Prime Minister was “setting himself up for a fall”.
He said: “The negotiations have barely begun – it is not for Mr Cameron to announce their conclusion.”
He added: “The figures he is talking about bear little relation to reality. He is setting himself up for a fall.”
A diplomat from one of EU countries that signed Mr Cameron’s letter predicted that the final deal would be larger than promised. “It will be very difficult to keep at 2.9 per cent with what the parliament is saying,” said the diplomat.
And a European Commission official stressed that Mr Cameron’s guarantee “doesn’t change anything” because legally binding “conciliation” talks continue until Nov 11.