So these bulls were being whipped to force them to break through some rubble. I helped them kill their oppressors. I am a gnome and all the gnome bodies, executed bodies, meant I had no love for the Druegar anyway.
They thanked me and made plans to vamoose, emphasis on the moose. I looted a body...and they attacked me. Apparently these animals are also guarding against theft from the bodies of their oppressors.
I don't think they were claiming the loot for themselves.
This is dumb. Yes, I can come up with comedic reasons, too. Fortunately it wasn't honor mode, so I didn't have to murder the ones I just saved. Much like that stupid gnome in the escape cave with Sazza, who you rescue, heal him, then he wants to attack you. I should just kill these entities. I have a hard time believing it's designed gameplay.