>Years ago I heard a joke about the Ten Commandments. As Moses began to introduce the Commandments written on stone tabloids, he said, “I present the Twenty” – just then there was a great crash and two of the tabloids containing Ten Commandments were reduced to dust – “I mean the Ten Commandments!”

I've seen that one - in one of the Python movies. Maybe not "The life of Brian", but the other 'historical' one, can't remember the title.