Hi, Melissa, sounds difficult for you! If I were going to think in good/evil terms, I'd make sure I did it 100% and used all the logic I could. If the evil nurse were going to poison you/the meds, don't you think she would have found a way around just changing to another nurse delivering it to you? Or, another way of thinking of it, if the other nurse is "good" then she works with and would know the evil one was evil too? I don't think good and evil can work together like that. If you trust the good nurse not to let you get poisoned, I would just ask her the next time if it is safe to take meds from a nurse she works with that you don't trust? That way, when you aren't poisoned :-) you'll know the nurse you don't trust might be at least gray enough to give you medicine okay?