I played a second run. A swarm of carnivorous bugs chased me face-first into the bad end of a barbed-wire fence. I was lucky that I fell on a side they couldn't figure out how to reach, and that I had enough dressings to patch up the wounds covering his entire body, but I was never able to get the resulting infections under control. At least he got to die in his sleep this time, with the help of one too many painkillers.
Somehow, despite being not as bad of a death, this one hit me a lot harder emotionally than the first. No piece of media has ever made me feel more like I was watching an actual person die. I applaud you for what you've created here, Orsoniks. I wish I could handle it, but I am too weak to go through that again.
Rest in peace, little dog guy. ;-;