Sorry, there were parts of the interview I had to cut due to length (word limit to posts) but this was addressed directly. When I say Eric is like a cat I mean he was untrainable, but a better predator while Molly was loyal without question. It seemed one of the main points of argument between the brothers was just that. Nathaniel’s bond was growing too strong, and he wouldn’t allow Eric to be slaughtered for meat no matter how ‘useless’ he became. While Molly’s master granted her gifts to allow her to live youthfully therefore never reaching the point of recycling.