Cary Fisher had a secret. He knew that the world wasn't real. Cary didn't know what reality was, he just knew that this wasn't it.
With this realization Cary also knew that he couldn't be harmed. While his buddies slaved he slacked. While they sucked dirt in foxholes he lounged on the battlefield. His unit charged the enemy and then everything went black.
The men of the twentieth unplugged from the virtual reality trainer. Sergent Higgen screamed, "Fisher and Collins, you have failed this examination and will be terminated. All you other faggots report for dress parade in fifteen minutes."