One day, I was watching him play, and he was fighting the final boss. He beat the first phase pretty easily. Then, the teacher got up to walk around. He had started to repair some stuff, so when he put the assignment page over the FTL screen, he left it unpaused.
He forgot that he had rerouted his Oxygen system power to his engines.

8 amazing, fully trained crew members, lost. He realized his mistake a few moments after and still managed to save an Engi and to other people.
He lost after that.