Nurses how are trained to ask the right questions at the right time. With the right questions they bring people to belief important things about them they didn’t know before. Psychiatric nurses make "inceptions", like in the movie Inception. They are able to handle badass aggression from patients and are able to deal with devastating life stories. They are often overwhelmed by usual hospital equipment but their communication skills are super impressive.
Sweets and coffee are truly important to survive.