You were just an experiment, used for poking and prodding, and being made into something that the scientists hoped would be successful otherwise you ended up where most of the failed experiments ended up—in a black bag, never to be found again. But something happened. The scientists didn't come in again, and you were left in your glass cage. You didn't know what was going on, until a guy in a sniper veil entered the lab, and saw you, the only alive experiment, sitting on the ground in the cell.