The post you are reporting:
That reminds of one I was told years ago, could get me put in the tower but never mind -
A dinner was held at the Foreign Office with the Queen Mother hosting and all the top foreign ambassadors attending. During the starter HM obviously let something loose, the French ambassador got up and apologised for his actions and left the room. During the main course same thing happened, the Irish ambassador apologised and left. The US ambassador, a bear of a man from Texas, was sitting next to our Foreign Secretary and whispered "Hey Mac, what's going on, we all know it's her so why are they taking the blame?". The answer came back "Diplomatic ettiquette, old chap". During the sweet course the inevitable happened, the Texan got up, gave HM a salute and said in a loud voice "That's OK ma'am, have that one on me!"