When the guard turned back to his prize, satisfied that his coworker could probably deal with the half drugged male, he was met with a punch to the face. He was a large, strong man and had been hit in the face before, so while it definitely hurt it also enraged him. He swore at her and his grip tightened on her throat to a bruising pressure, keeping only the amount of restraint needed to keep from crushing her throat and killing her. She wouldn't be any fun if she were dead, and besides his bosses would be angry. He didn't get to do that for long, though, as her knee also made contact. He doubled over in obvious pain, almost completely losing his grip on her.. He might have been able to recover and continue in a few minutes, still, but unfortunately for him Jack managed to get over there at that point and deliver an electrical shock to his back -which he held until the man stopped moving. The tazers were meant more for quick but possibly repeated bursts rather than sustained use, so it had left some burns and also shocked his heart out of proper rythm, which was likely what caused him to lose consciousness. Jack sincerely hoped he would die.<br/><br/>That done, Jack turned towards the other guard, putting himself between him and Raylan and the tazer between his own body and the guards. He didn't say anything, but the look he gave them was threatening as he let Raylan have time to fix her clothes and get away from the now unconscious guard closest to her.<br/>He glanced towards her, "Sorry." He managed a quiet and somewhat slurred apology. Even his breathing seemed labored, and yet he still felt bad that she was in this situation. While they weren't a couple, he did feel protective of her and liked her so far, and besides that he was simply angry at the guards and scientists for engaging in something like this.