. . . so they will use YOU

You yell frantically for them to open the door, but the scientists refuse, saying "We have been waiting for a test subject for a long time, we can't pass this up. they throw the switch, and unlucky for you, you start to feel woozy, as your body begins to hurt. soon you are unconscious. when you wake up, you are in a cage, but you realize that you have been transformed, and look at your new body.