badrad, over here, in private clubs, if the freeloader is traced back to the member who let him in for free(easy task), that member get 1 warning at best, most clubs just de-member (for life) the violator on the spot with no refund. It is in the agreement that all members have signed. I dare any member would risk this penalty for saving 10$ for his friend. If that is not enough, being labelled as a co-cheater would make him a disgrace among the badminton circle. Sure make potential cheaters to think twice.