The reason why Snarleyyow did not die was simply this, that he did not eat the red-herring.
The man asked for a red-herring, which was forthwith given to him.
Ginger in turn unfolded from its manifold wrappings a red-herring.
"It is what they call a herring, a red-herring, my lady," responded Wilton.
After that the Rabbi was what the congregation called Remorse; also Red-herring.