British PM resigns early to make way for Theresa May, hums strange tune

Though he'd planned to stay on for two more months while his party chose a new leader, Prime Minister David Cameron is to step down Wednesday after opposition to Theresa May evaporated. What's getting everyone's attention, though, is the odd little tune he hummed after making his announcement.

Believing himself off the air, Cameron's mic was in fact still hot as he turned from the podium in Downing Street to retreat into Number 10.

"Do doooo, do doo," Cameron hummed, to a tune suggestive both of ironic victory and melancholy detachment.

Then, as he closed the door, he paused a moment and added a stout "Right"-the customary rhetorical punctuation mark of a British man who has completely and irremediably ruined everything around him.

The video above was captured by ITV journalist Vincent McAviney.