Patients can refuse treatment, but doctors are not allowed to turn away anyone that comes to the emergency room.  However, once they're stable, then the doctors can boot them right out (like after setting a broken bone).  This lard ass wasn't healthy enough to leave the first time, but he did anyways because we're not allowed to stop them.  Treatment without permission is called medical battery, so he was legally allowed to make himself worse then inflict his rotting genitals on us a second time.