It was the custom with Fin MacCumhail and the Fenians of Erin, when a stranger from any part of the world came to their castle, not to ask him a question for a year and a day.
On a time, a champion came to Fin and his men, and remained with them. He was not at all pleasant or agreeable.
At last Fin and his men took counsel together; they were much annoyed because their guest was so dull and morose, never saying a word, always silent.
While discussing what kind of man he was, Diarmuid Duivne offered to try him; so one evening when they were eating together, Diarmuid came and snatched from his mouth the hind-quarter of a bullock, which he was picking.
Diarmuid pulled at one part of the quarter,—pulled with all his strength, but only took the part that he seized, while the other kept the part he held. All laughed; the stranger laughed too,