The ordinarily lumbering man's posture and coordination altered instantaneously with actual threat in the vicinity, as if chains just dropped from his body; chains thick and heavy, designed to hold back a charging animal. Instinct flared within him to advance, to do what he does best, but nagging, fun-depriving reason interfered. Something was not right with this situation. 

This wasn't part of the deal. Obviously, a lot was not said earlier this evening, quite possibly deal-breaking conditions. He was not the most ethical man ever to grace the Realms, and had done many disreputable actions in his life. Despite this, Keystone was not a strongarm thief. Well, rarely a strongarm thief, and there had to be a compelling reason. 

He locks eyes with the Paladin, his face pleading for trust if only for a fraction of a second. Despite the direction of his gaze, his words were directed at his present employer: "Terms were, we keep anything under the mage's control off of you. I intend to honor that bargain."  

Keystone steps his left foot back, assumes a defensive posture, and [i]holds action[/i].