Turtle Dart

 
Prerequisite(s): Weapon Focus (Short sword), Exotic Armor Proficiency (Battle Plate or Mountain Plate), Exotic Shield Proficiency (Extreme Shield) or Tower Shield Proficiency
 
Benefit: To gain the benefit of this feat, you must be wearing exotic heavy armor and carrying an extreme shield or tower shield. When using this style, you do not provoke attacks of opportunity for moving away from any creature that you attack with your short sword in the same round.
 
Source: Races of Stone