Update: gave her a rat tonight. One of the new ones that I picked up Thursday night. She struck it right away, and ate it. I really think the issue must have been with the rat I tried to give her. Thank goodness she was smart enough to leave it. So tonight is the 3rd rat she's taken from me, since May 2018. Gonna be a good year! I was so worried that I would have to give her back. I am so happy the "switch" to take f/t has turned on for her.