> Will Amazon pay up in full if it punches a hole in my barn, harms livestock, or destroys a car I have sitting outside?

Of course they will. Why wouldn't they? You have their drone and a photo of a gaping hole in your roof.

> If they're going to have a non-zero number of these drop from the sky, they better know they're not getting that drone back, for starters.

Well, they'll probably make damage reimbursement contingent upon your return the drone.