A spaniel at the point of death requested a mastiff friend to eat him.
"It would soothe my last moments," said he, "to know that when I am no
longer of any importance to myself I may still be useful to you."
"Much obliged, I am sure," replied his friend; "I think you mean well,
but you should know that my appetite is not so depraved as to relish
dog."
Perhaps it is for a similar reason we abstain from cannibalism.