President Obama and the Queen are proceeding towards Buckingham Palace in the Queen's carriage, waving to thousands of cheering Britons; all is going well.

Suddenly the right rear horse lets fly the most horrendous earth shattering fart ever heard in the British Empire. The smell is atrocious and both passengers in the carriage must use handkerchiefs to cover their noses.

The Queen turns to her guest, Mr President, please accept my regrets... I'm sure you understand there are some things that even a Queen cannot control!

In his best Presidential style replied Obama: Your Majesty, please don't give the matter another thought... Until you mentioned it, I thought it was one of the horses.