When their test started, they needed to cut off body parts. You probably noticed how they need triggers pulled to start the trap. What if the triggers were never pulled? They could have used the knives chained to the table they were laying against, and used those the cut the wire, connected to the trigger. That way, they could have infinite time to get rescued, or fiddle around with the trap. Also, if it can be put together, it can be taken apart. (Unless it has the zip tie mechanism. But it is made of thick metal, that is hard to bend.) There must be some way to Unscrew parts, and take it off of their mind. (Sorry that was horrible.)