Overcrowded Emergency Room, Presbyterian Hospital, Oakland:
A Patient has just listed his problems for a Doctor, including having a pacemaker, one kidney, and a lung infection:

Doctor: Why do you have the pacemaker?
Patient: Crack.
[…]
Doctor: When was the last time you did crack?
Patient:Today.
Doctor: [clear his throat] Do you smoke?
Patient: No, smoking is bad for you.

— Overheard by alicia