I’ve gone 8 days without any food or water (had IVs for fluids). You’d be weak but no way would I be ready to eat my dog after only 3 days.
Exactly.
I can see doing it when you’re approaching, say, the two-week mark and haven’t seen any other possible sources of food the entire time. This guy, however, didn’t survive three weeks off of eating that dog alone — there obviously was other food in the area and he obviously figured out how to get it. I wouldn’t imagine dog meat stays good very long when you don’t have a freezer.
His dog saved his life once. That “second time” was pure selfishness on his own behalf.