I couldn't help but give my take on the above remark. It illustrates thinking that I am sure that certain individuals in the nursing staff are doing. It illustrates a morality that is willing to trade one bad behavior for another. It is a God complex and it is the result of the the self-esteem movement which began in 1969.
In the case of certain individuals in a nursing staff, they may feel they are over worked and under paid or feel some form of injustice. So, to express their displeasure in the situation, they trade their poor treatment for a behavior that exacts a punishment for that treatment. Sometimes that punishment manifests itself in an outrageous action. Such a morality in the nurse's case, acts out their assault on their self-esteem by trading their displeasure for the displeasure of the patient. This behavior is just like your comment, which I know is in a figurative way, takes pleasure in a drastic action; like tossing nurses out of windows. This type of thinking manifests itself in the same type of street justice that causes a patient to suffer a slow, painful death by dehydration.
It reminds me of the story of a restaurant worker who took out his feelings of injustice by peeing in the coffee. It reminds me of the student who takes a gun to class and kills teachers and classmates.
It gives that nurse a sense of justice where the patient by proxy, is the one who pays for their displeasure.
No matter how poorly I was treated by my boss, I would NOT take it out on a customer. If I were a nurse, and I treated a patient poorly, I would deserve to be tossed out a window, too.
I can always look for another place to work, meanwhile...