"Stop taking any advice from you, including past advice."

It was vague enough of a threat that she was sure only Adam would have any idea what that meant at least. It was as close as she could get to saying something meaningful that might stand a chance at deterring him. He didn't need to prove to her that he wasn't going to hurt her anymore. There was no reason for him to die for her again. Threatening to ignore his advice on how to be careful so as to not attract the Warden's attention was as best as she could get to a final gamble here.