A lot of people see it as a weird conflict of interest (since we both keep reptiles) but my sister is actually pretty active on rat forums and for a long time participated in a rat rescue network. A lot of the rats that got re-homed that way were ex breeder females that people didn't want to see become snake food. We've actually had a few such rats as pets. Unfortunately due to my history with having rats as pets I'm not sure how I'd stomach breeding my own for food. It's easier when they come to me already dead and frozen. I don't have nearly as much emotional attachment to mice but they stink