in the emergency room problem, many, many things can affect the agent's decision. the students say things like, "the agent is a doctor, and doctors are taught not to hurt or kill people, so the agent will say no" instead of saying what they themselves would do. or they would say things like "if the doctors kill the homeless person, people will find out about it. they will be worried that the doctors will kill them for their organs, so they will not go to the emergency room when they need to. then more than five people will die—sick people who did not go to the emergency room for help." these things are true, but they mean the emergency room case is very complicated for a thought experiment.