Responsibility and authority are two very different points. Yes I feel its everyone's responsibility to report unsafe or any other practice that goes against the rules. Authority to intervene is a slippery slope not many clubs will give anyone the authority to become physically involved. Usually if you do you do this on your own and you will own the consequences. A few times I have seen someone at a field out of control and the executive has called the police to have them removed. If you were to accost them you could be charged with assault even if he were the one contravening the rules. One other point is that unless there is wording in the club rules/constitution attempting to remove or block membership may be cause for legal action against the club.

Dennis