David Davis, Minister for Brexit has left the cabinet over the latest Theresa May proposal, supposedly agreed at Chequers.
Boris Johnson has followed suit.
I feel like I'm on the Titanic, and the crew hasn't merely given up on trying to save the ship or organise an orderly evacuation to lifeboats.
No. Half the staff have decided that now is the time to make more holes in the ship, and the other half have decided to shoot themselves in the foot.
So what now?
Can the May government survive this revolt? Is a leadership contest in the offing? Can Boris hold his nose and ally with Gove? Will Andrea Loathsome raise her hand? Will the Honourable Rees-Mogg indicate graciously that if asked to serve, he would not decline?
Dum de dum de dum de dum, dum de dum de dum dum ...