Choke Hold
Prerequisite: Unarmed Strike >= 1, Master Grapple, Brawl BAB >= 4.
          OR: Martial Mastery, Master Grapple, Brawl BAB >= 5.
Benefit: For every turn a character with this feat maintains a grapple on a living humanoid with less than half their hit points, that creature must make a Fortitude save against the grappler's stunning fist DC or be rendered unconscious for an extended period. Characters receive experience for foes felled in this manner.