ABSTRACT

Once upon a time there was this King. He was on the run from his Loyal Opposition, who were anxious to penetrate his chain-mail with a yard (0.914 m) of cold steel. One day he had a close shave (0.03 mm) when a group of Loyal Opposition knights stopped and asked the way to Runneymede. 'First left, second right, and if you stop at the King's Arms have a pint (0.568 litres) on me' he replied. 'Obviously a peasant' concluded their leader, the Black Knight.