This, I'm reliably informed, is what 'umble pie looks like, and I shall cheerfully be tucking in this evening, having earlier predicted - contrary to the polls - that Ken Livingstone would squeak back in. I'm still pinching myself at the courage of Londoners for not, for once, doing the safe, boring, sensible thing. Not that kicking out Ken isn't sensible, of course.
Still, I'm in good company. Boris himself had to eat his hat - a woolly blue bobbled affair - after falsely predicting that Tony Blair would persist in calling an election in the midst of a foot-and-mouth outbreak in 2001. How long ago that now seems.
My new prediction (more accurate, I hope) is that there will be many more people eating humble pie, or their headgear, or merely their words over the next four years, as Boris Johnson shows his true genius for administration, slashing red-tape and doing away with the hated bendy-buses. But what a loss to comedy. How will they cope on Have I Got News For You?
Here's a suggestion. Ken's available. He'd make an admirable guest-host.