Hmm... I once read of a Frenchman in the 14th century who was witnessed committing murder by the victim's dog. The dog knew the burial site he used, and would attack him and only him, so the king ruled that he would be judged in a trial by combat against the dog - him with a lance, and the dog with its jaws. The dog prevailed, and he was sentenced to death after he confessed to his crime.

[A rare instance of Dio seeming impressed by an animal - really, he's just entertained by the idea of someone so stupid and pathetic, that his plans were foiled by a greyhound. Couldn't be him.]

Most cases are much more tedious. It's rare to find one worth talking about, but they do happen.