I know this isn't directed at me but I did want to clarify something that I said. (I do understand and agree with what you are saying)
In my previous post in this thread, I talked about animals that were euthanized chemically being rendered into pet food.
The largest problem with this (aside from the fact that most owners have no idea that this could happen when their animals are euthanized) is that the medications the animals were on, along with the chemical (pentobarbital) used to euthanize the animal have the potential to be incredibly harmful to animals that ingest them.
The pet food industry is a whole different animal (no pun intended) of a thread so I won't continue to go off topic.