During the remainiacs' long campaign of sabotage and attrition from inside government against Brexit, they made full use of an often willing and compliant civil service in creating material to support their Project Fear narrative. Such, we suspect, was the Yellowhammer file, a document that has Hammond's Treasury all over it. Yellowhammer was a scare too far. Sunday's papers reported that even civil service hearts weren't really in it, so absurd and far-fetched were some of the inventions. The May-sanctioned semi-official leakers from Cabinet clearly decided at the time that the thing was just too ludicrous to be credibly leaked.
And so Mr Hammond, it seems, was left with this unused carefully constructed work of semi-fiction. All that creative energy to no end. Until it seems the last few days, when a copy was mysteriously left in a Whitehall pub used by journalists. Mr Hammond has denied that he was responsible, and we must believe him.
However, if Mr Hammond should ever be tempted to leak any other cabinet documents, or material that he is bound both by his privy-council oath and the Official Secrets Act not to disclose, he should be aware that this is not a government inclined to forgiveness, and any such actions could leave him banged up in Belmarsh.