The chief executive of a British no frills airline has branded the French "lazy frogs" for the second time in a week.
Philip Meeson, chief executive of Jet2.com, was angry that one of his planes was delayed flying back to Britain by protesting French students.
About 50 students staged a runway sit-down that stopped around 100 passengers boarding a Boeing 737 at Chambery airport in the French Alps.
Eventually the plane was able to take off for Leeds Bradford airport, where it arrived 90 minutes late.
Mr Meeson said he was annoyed French police had done nothing to stop the Chambery runway protest which also forced Jet2.com to divert a flight from Manchester to Grenoble.
He repeated his comments of last week when, on the back of a strike by French air traffic controllers, he urged "lazy frogs to get back to work".
"I am absolutely furious about the events in France over the last week. We are a low cost airline that has had passengers stranded through no fault of our own," he said.
Earlier, he wrote on his airline's website: "Whilst France is undeniably a beautiful country (with equally good food and beer I hasten to add) we are appalled and quite frankly tired of the air traffic controllers' old fashioned attitude to dealing with any issues they may have."
His comments were illustrated by a picture of a toy frog in front of an air traffic control tower, holding a sign reading: "I am lazy."
Mr Meeson concluded: "In short we urge the controllers to get back to work or get another job."
Voila ce que j'appelle un choc de civilisation!
