I know my dad used to go to Stamford bridge for the fights, and to some extent was involved with the headhunters. He started this at about the age of 15, in the mid 70's. From what he's said, the headhunters were basically shafted in that documentary and made to be alot worse than what they are. Yes, a few did take it way too far, but there was no doubt these people loved their club. Unless you know the people involved, you shouldn't really comment on what you've 'heard'....