Police had to use pepper spray to subdue a disorderly man Wednesday night. The man challenged police to a fight and hit an officer in the face.  The officer responded to a call about a disorderly man at about 11:30 p.m. in Kalihi.   The 24-year-old suspect confronted him when he arrived and challenged him, then hit an officer.  He was arrested for first-degree assault on a police officer.