The revelation came as the 52-year-old Brexiteer refused to rule out backing fascist National Front leader Marine Le Pen for the French presidency.

In his most explosive interview to date, the controversial MEP said he was “on the fence” over whether far-Right Eurosceptic Le Pen’s election was a price worth paying to bring down the EU, saying: “If she wins, it’s over.”

Revealing he had been threatened with a glass on Thursday night, he said: “I’ve got no life – I can’t do anything, I can’t go anywhere.

Certainly I would not go out in London of an evening on my own without security – couldn’t even think about it.