I had the odd thought tonight that Satan isn't God's opponent - he/she is God's more sensible spouse. God, of course, is the cranky hobiest who doesn't always think things through.
"Honey? What's this thing taking up half the garage?"
"Oh, that's Earth. It's a project I'm working on."
-There is a short pause.
"It's infested with sapients!"
"Yeah, I made it for them."
"Made it for them. If they get in the house you are in going to be in serious trouble."
"Nah, they're fine. I've got their higher reasoning turned off. They're so cute when they're innocent!"
"Oh really." Satan inspects the globe for a moment. "So," Satan mutters to himself, "You created a bunch of sapients, and gave them a place to live, and then... set it up so they can't actually think? We'll see about that, Jehovah."