Douglas Adams came up with this (to be funny), but I think there is a serious discussion waiting on this topic; Doug imagines a delicious animal being bred that actually desires to be eaten, and has the ability to say so clearly and distinctly.
I seem to recall, the animal also has the capability of euthanizing itself when it's time.
There was a little discussion in the novel around Philip Arthur Dent's objection to eating something that sincerely wanted to be eaten instead of an animal that did not wish to be eaten.
Now, would such a creature on earth be derived from human, porcine, bovine, or 'other' genetic stock, Idunno . . .
The granting of a pardon is an imputation of guilt, and the acceptance a confession of it.