Nick Robinson: No, no, no, Prime Minister. You've made that point. You've made it at length in a series of interviews in the run-up to this conference.Boris Johnson: [jovially] Hang on, I haven't had the chance to make this point on your show for two years, by your own account.Nick Robinson: [sourly] That was your choice not ours.
Nick and Boris then squabbled for a while, interruptions flying, before Boris got a while to speak for about half a minute before Nick made his famous intervention:
Nick Robinson: You have made that point very clearly and I'm going to make...Prime Minister, you are going to pause. Prime Minister...Stop talking! We are going to have questions and answers, not where you merely talk if you wouldn't mind.
Remember that Nick Robinson had been talking for getting on for half of the interview by that stage.
And that shows [I think] what I strongly suspect, that Nick Robinson had his 'Stop talking!' interruption prepared in advance. My suspicion is that BBC editors encouraged him to deploy it.
After two years of avoiding the programme, Boris might now remember why he avoided appearing on the programme and might well begin avoiding it again.