having known and worked out with many pros, i have found this: if they know you, in and outside the gym, you hang out, train sometimes with them, and they respect you for your serious approach to training, they're cool.
but many confided to me, that the morons, the pimple face guys on the gas at 165 pounds, walking around with body hard ons, and just general jerks, they can't stand them. one pro i knew very well said he thought 99% of the fans were f*cking idiots. he went on to say that the only good they could do were if they had a good looking chick, and that(believe it or not), the guy would be such a nuthugging tool that he'd get his lady to give his favorite pro a bj, or some other service.