Apparently without warning, Marena Farris had clawed at Filly's face, then grabbed Filly's automatic, then fired it at Surikov. Farris hadn't seemed to know how to handle a pistol, so it was probably pure luck that she'd hit Surikov at all. While Shank was getting the gun away from her, Dok suddenly went off like a jet, which was the only part that made any sense.