The others have begun killing the creatures, showing more and more glee and anbandonment in the act. The creatures, for their parts, have done nothing but suffer. They seem friendly and hospitable, in their childlike way, until they're finally hacked to death.
...they're only demons, right? Why won't they act like it?
Sixth day in the Abyss:
I killed over a hundred of the beasts today. I've lost count how many. What fun! What sport!
(based on a Brian Aldiss story)