If I had my way, I wouldn't be bargainin' with ya in the first place.

[She holds her hands up in a shrug.]

That's the best you're gonna get outta me. I know you ain't offerin' out of the sheer goodness of your heart. If I let it slip after acceptin' something big, I'm the one in trouble.

[And the last time she broke an agreement with a demon, it nearly killed her and some of the kids trying to save her. This wasn't on the same level, but still. She could agree to tit for tat, but nothing more.]