Rebel

 is a hero personality.

Mechanics
Personality training on rebel heroes has opposite the normal effect:
 * When a trainer has a singularity personality, one with no opposite, the likelihood that a rebel trainee will gain that personality decreases with training.
 * When a trainer has a duality personality, one that has an opposite, one of two following things might happen:
 * If the rebel hero was making progress toward the same personality as the trainer, training will reduce that progress.
 * Otherwise, the rebel hero will gain progress toward the opposite personality.