Enjoyed that discussion. It raised certain issues that are not often mentioned:

- Keeping pets in unnatural confined domestic habitats is oppressive to the animal and wasteful in food and health costs.

- Free range farm animals may have the best lives (social and natural environment), pampered by the farmer (until humane slaughter), and be the only way to exploit some habitats (hill farms with sheep on scarce grass over thin soils cannot be replaced by wheat or corn).

- A life of freedom with a cheap humane death is a worthy goal for us all.