Leon, a student training to become a police officer, was once again being scolded by his teachers for making yet another mistake. Their anger faces only served to deepen the sense of failure that seemed to engulf him.

"Please let me try one more time," he pleaded, his voice quivered slightly.

He tried again, feeling his hands tremble as they fumbled with the weapon's mechanism. But, once more, he failed miserably.

"You'll never make it as a cop if you keep this up!" his instructors yelled.