Do you know what makes a captive lose their shit? Giving them freedom. Just throwing back the door, unshackling them, slapping them on the ass and telling them to get the fuck out. At first they do not move, especially if you have had them awhile. They cower, their eyes go from you, to the door, from you to the door, they take a hesitant step and then they are off. Running bat shit crazy all over the place.
The first place they run to is a wooded area. I think it is just natural instinct to find some place where you are hidden from view. They crash, tumble, and eventually they get hurt. Of course you follow them, with all the noise they are making as long as you stay calm and out of their view they do not even know you are there. At this point, they begin to feel more confident. They are injured and tired by now. They slow down a bit, you stay absolutely still. Give them a few hours to themselves. Make them really believe that they survived.
Then get as close as you can and just stand there. Make sure they can see your weapon, and smile. Start to move toward them slowly, watch the fear in their eyes, watch as they start to hobble/run away shouting, “NO NO NO!!!” the whole time. Then have the others join you. Have them naked already except for their serial killer masks. Watch as those tears start to flow, snot running down their face, eyes red and puffy.
Now you get to enjoy recording the whole brutal sexual assault from the comfort of a warmed by the sun tree stump. Maybe even feed a chipmunk or something. As soon as all the cocks are flaccid, all the cum is expelled, all the bruising that the victim has room for on their body has been completed. Simply walk up and finish the job. It is Free Range Snuff porn, the vegans will love it!