The breadth of the table.
William of Malmesbury Gesta Pontificum, Bk. 5; translation from Helen Waddell The Wandering Scholars (Harmondsworth: Penguin,  1954) p. 78.
His reply to Charles the Bald's taunt, as they sat at the same table, "Quid distat inter sottum et Scottum?", (How far is an Irishman from a drunkard?).