When you are Labour’s foreign affairs spokesman, you can expect to be asked a few questions about foreign affairs if you decide to appear on Sky News.

Unfortunately Emily Thornberry was totally stuck for answers when presenter Dermot Murnaghan challenged her to name the foreign minister of France (Jean-Marc Ayrault) or to give the name or gender of the South Korean president (Park Geun Hye).

To fill the silence, Thornberry decided to accuse Murnaghan of being patronising and conducting the equivalent of a pub quiz. He would not have asked such questions of any male politician, she fumed.

There are two ways of reacting to this. You might say: “Right on, sister, facing down sexism!” Or you might say: “What an absolute twit!”

I’m afraid