An assistant coach of a bantam B team in Melrose, MA was banned for life from Massachusetts Hockey for grabbing a referee during a game. The twenty-year-old official declined to press charges.
http://www.boston.com/news/local/massachusetts/articles/2004/03/10/youth_hockey_group_bans_melrose_coach/
The original story of the incident:
http://www.boston.com/news/local/articles/2004/03/02/hockey_coach_accused_of_assaulting_a_referee/
Stellar quotes from the Mass. Hockey affiliate leadership include, "He did the right thing," and "It wasn't a vicious choking."