We had some DM ones, let's do it from the other side of the screen.
>One particular GM with homebrew setting.
>Actually kind of neat when you get into it, but he plays with the usual fantasy tropes of heavenly beings.
>Angels serve gods. Good gods have good angels, neutral gods have neutralish angels, evil gods have evil angels.
>Angels are a kind of immortal spirit doing immortal spirit things most of the time.
>They can, however "fall". Falling has nothing to do with morals or ethics, they LoTR like incarnate into a body, trading away their immortality for a greater ability to act in the material world. The process is one way and irreversible. But a good fallen angel is still good, and an evil fallen angel is still evil.
>This is separate from demons, who nobody, not even the gods know much about, and seem to be spirits of chaos and destruction that were around since day 1.
I don't have a problem with any of the above. But he never actually explains any of it, and just gets irritated with people who don't keep up with his personal definitions; I only got what I greentexted by months of sessions with him and puzzling it out.