You've hit the nail on the head Penny. If she doesn't ask I give it to her, but when she asks I question why she wants it, and usually find out later that there may have been exaggerations and a few untruths.
I've told her what I've found out, she's tried to come up with a justifiable reason, and she's having a sulk now, but at least she knows she wont pull the wool over my eyes.