Lost keys

Nurse: Excuse me, doctor, do you have a moment?
Doctor: A moment? What's the question?
Nurse: More of a situation, a gentleman in Exam 3.
Doctor: What's the problem?
Nurse: That is the problem: we're not sure.
Doctor: You've got the chart?
Nurse: Right here.
Doctor: Hmm... not much here, is there?
Nurse: No doctor, no obvious physical trauma, vitals are stable.
Doctor: Name?
Nurse: No sir.
Doctor: Did someone drop him off, maybe we can speak to them? Let's get some background on this fellow.
Nurse: No ID, nothing, and he won't speak to anybody.
Doctor: Well then, let's say hello.

Doctor: Good morning, I'm Dr. Watson.
How are you today?
How are you today?
Look son, you're in a safe place,
we want to help you,
in whatever way we can.
But you need to talk to us,
we can't help you otherwise.
Now, what's happened?
Tell me everything.