Right then. This whole thing is one big HFS discussion, so if you dislike spoilers, leave now.
All the unspoiled folks gone? Good, because I screwed up big time.
At some point, I decided I wanted to put a hole in the ground. Straight down to the HFS. And I used goblins.
I succeeded. But I didn't see this coming.

"That demon doesn't look very healthy..."

"..How does a tentacle demon even
assume a fetal position?

"Oh. That's how."

"Oh Armok, Urist, what are you doing?!"

"Appropriately named, this engraving."

"I never thought I'd feel sorry for a spirit of fire."

"What horrible thing was bad enough to terrify this one?"

I made a few races adventurer-able. I didn't expect it to do this.
I'm pretty sure even Armok is backing away from this world, slowly, at this point.
...Admittedly, I laughed when I saw the elf violating the demon engraving. I'm losing my mind, I'm sure.
There's more horror waiting in there for me to look at. I'm not sure if I want to open DF anymore though.