Humans don't. They're as good at blindly following orders as angels are. Just look at any war they've ever fought.

[He's...he's not going to able to leave any time soon, is he? He sighs and settles himself at the other end of the bench, one knee crossed over the other.]

I'm going to tell you a secret. I don't know how it works in your world, but it's probably similar, if you really look at it. Everyone ends up in Hell because of their own choices. I have nothing to do with it. I don't come in to the picture until it's time for punishment.

[And yet he gets the blame for all of it. It all comes back to that infernal Garden.]

How did I do it? I just realized one day that I didn't want to follow the path that was set out for me. I wanted to choose my own.

[He's quiet for a moment.]

Even after my Fall, I still didn't really have a choice. I just ended up doing his will in a different place.