system
Given the following post, respond as if you're commenting on Reddit:
human
[Overwatch] What does Roadhog's hogdrogen do to him in-universe? I think it's meant for radiation?

Also, side question: Since he named his entire character after hogs, why would he get pissed if people call him a pig, hog, etc?
gpt
It’s to combat radiation poisoning; when the Australian omnium was destroyed the nuclear fallout turned the Outback into a wasteland.

As for his anger, the dude’s kind of insane.  The loss of his home, the poisoning, and years of murder contribute to that, but it could also be a case of when you have a good inside joke or story, then someone else tries to use it on you and it just seems wrong.