That was a fine plan. Find the original owner and sort out this mess... Only they were talking to Crowley who was not the most savvy demon when it came to this sort of thing. He was the demon who had mislaid an Antichrist and had been unable to locate him.

"How do you go about finding a lost human? I've never had much luck with it... Besides! It doesn't say where he lives. We only have the guy's name and a carrot! I think, we just chalk this up to experience and make it a habit to only open strange boxes inside of other boxes, like scientists do in labs, so what ever is inside can't attack."

Note - he was still advocating opening strange boxes in the first place.