Interesting! The little mouse was a step up from what I normally feed her, but it definitely wasn't too huge for her... She wasn't coiled up, and was inching forward in strike position. She had to strike it a few times, but I think that's just because her jaw wasn't 100% aligned... I wonder if she was intimidated by it, but still hungry/wanting to eat it?
My other balls will sometimes hide their faces in coils when they don't want to eat, I've seen it with both live and f/t, but this feisty little one wasn't seemingly scared at all, if anything excited and amped to take another.