In the dive club I belong to, I have yet to see anybody be a total jackwagon towards anybody else on purpose. My club has them, like most clubs and from what I have seen its mostly swagger. At the Pennyroyal and Merment Springs what I see is everybody bending over backwaards to help one another. Since I am wanting a female dive buddy or two becaause my wife hates the water and anything to do with water other than showering, I find myself being overly helpful.