LenS,
Not to threadjack calafro's post, but I think the rule at the club is that you can bring a friend to shoot if there's a range officer present who is willing to be in the range with your guest (I *think* this is the rule. I haven't been able to get two similar answers on this question yet). People in charge tend to say ominous things about insurance when pressed as to why this requirement is necessary. The problem is, there's never anyone around. So, from a practical standpoint, don't waste your unlicensed-friends' time inviting them to the range.
Several range officers are involved in the SAS get-togethers, so that works out ok. If you are unlicensed and want to attend an SAS meeting at the Boston Gun Club, there isn't a problem.
(It's almost like my male co-workers face discrimination! Not really, but...)