A Serpent in the course of its wanderings came into an
armourer's shop. As he glided1 over the floor he felt his skin
pricked by a file lying there. In a rage he turned round upon it
and tried to dart2 his fangs3 into it; but he could do no harm to
heavy iron and had soon to give over his wrath4.
It is useless attacking the insensible.
