I think as much as we would like to think that the diving community is a tight nit group more and more people are becoming certified and interested in the sport of diving. I myself was just certified a couple of years ago. It`s good that you went on with the dive and made the most of it despite how frustrating I`m sure it had to be. I too have encountered rude divers above and below the water. But I simply take a no argument approach and try to lead by example. The other day I had went bowling and some young kids was in the lane next to me. They was horsing around and often coming up and bowling or playing in the lane while I was trying to roll. So each time they came up I walked back and waited. It didn`t take them long to get the hint and be come more courteous. Although this is a little harder to do with diving, if the majority of people act accordingly rude people will hopefully change their ways to be more respectful.