Study: Penalty box does "absolutely nothing whatsoever" in the long term to deter players from committing violations.
Stunning findings. "JustIce has called for several sweeping reforms to the penalty-box system, including longer minimum sentences, though with time off for good behavior such as not squirting fans with water bottles or damaging the facilities with the stick or skates; anger management therapy for those demonstrating repeated aggressive tendencies; and career counseling to help notorious instigators, fighters, and enforcers become productive members of the passing and checking community."

