Another memory from just about 50 years ago; horse burger turned up in the local market (southern Minnesota) and we tried some. As near as I can remember, we found it just a little less flavorful than "hamburger", but hard to distinguish with burger "fixings". Never came across any in a meat counter again. I would have to be at the point of starvation to eat dog, and really weak from starvation to eat cat, but I know it's nothing but personal bias.