You just reminded me, I once caught and tamed a wild horse and it was my loyal steed for ages. Then one day I was out just fucking around and I got caught in a gunfight with a gang of bandits and my horse died in the crossfire. I actually felt pretty shitty after that as I had that horse for more than half the game. Dem feels, man.
To save myself from experiencing this level of pain again, I'm just going to either abandon the dog or shoot it as soon as I start the game.
Some amazing idea for TLOU players