Would someone mind checking on Nigel Farage? I’m worried about him. I hope he’s all right. It’s just that he’s been behaving a little bit oddly.

After Boris Johnson announced his Brexit deal on Thursday, an appalled Mr Farage said he’d rather have an extension of Article 50 – in other words, a delay to Brexit. Then, when Jean-Claude Juncker said the EU would reject an extension, Mr Farage was furious.

But hang on a minute. If MPs vote down the deal, and the EU rejects an extension, we’ll be leaving on October 31 with a no-deal Brexit.

Which I thought was what Mr Farage wanted.

Things then grew stranger still, as the Brexit Party leader warned listeners of his LBC radio show that Brexit was only going to get more and more difficult. “Anybody that thinks we’re nearing the final phase of this hasn’t got a clue,” he scowled. “The Withdrawal Agreement will prove to have been the easy bit.” Which, funnily enough, is exactly what Remainers have been saying.

And then it hit me. If Mr Farage doesn’t want to leave with a deal, and doesn’t want the EU to reject an extension, I can see only one explanation.