So if the "urgent natural necessity" again falls upon me as upon my old friend Setanta --

"Denaid comarli for Ailill, Gudid Conculainn im for lecud asind inudsa ar ni ragaid ar ecin tairis uair rodlebaing a long laith, ar ba ges dosom intan no linged a lon laith ind imreditis a traigthi iarma ocus a escada remi, odus muil a orcan for a lurgnib, ocus in dala suil inachend, ocus araili fria chend anechtair; do coised fer chend for a beolu. Nach findae bid fair ba hathithir delca sciach, ocus banna fola for cach finnu. Ni aithgnead coemu na cairdiu. Cumma no slaided riam ocus iarma. Is desin dober fir nolnecmacht in riastarthu do animm do Coinculainn. (Lebor na hUidhre, fol. 34, b1.)

which, since you do not read or speak the Old Irish:

    "'Take counsel together,' said Ailil; 'entreat Cuchullain that he may permit you to leave this place, since you cannot pass by him forcibly, because his lon laith has sprung,'—For it was usually the case with him when his lon laith started in him, that his feet turned backwards and his arms forward, and the calves of his legs were transferred to his shins, and one of his eyes sank deep into his head, whilst the other was protruded, and a man's head would fit in his mouth. Every hair on his head was sharper than then thorns of whitethorn, and a drop of blood stood on each hair. He would not know friends or relations, and he slew equally backwards and forwards. Hence it was that the men of Connacht applied the name of 'Riastartha' to Cuchullainn."

(Of course, knowing him from is youth he'll always be Setanta to me.)