A theatergoer in Pittsburgh found out first hand Wednesday night what it means to suffer the slings and arrows of outrageous fortune. During a fight scene in the final act of the Three Rivers Shakespeare Festival’s production of “Hamlet,” a dagger sailed into the third row and hit Mrs. Patricia Spahic. The blade glanced her forehead, leaving a cut. Richard McMillan, who was playing Hamlet, immediately stopped the show and asked if there was a doctor in the house as the lights came up. A physician rushed to the woman’s side and helped the stage crew escort her to an ambulance. The play resumed within minutes. Mrs. Spahic, 63, of Ambridge, was treated at a hospital and released. The mishap occurred during the fight in which Hamlet and Laertes both die. As Hamlet drew his dagger, it slipped from his grasp.