There's a few of these clowns regularly at my gym.  I sigh inside when i walk through the door and see they are there and other times I just leave and come back later.  So annoying.  It's not nice to say but I kind of wish they would injure themselves so we could have some peace in the gym.  

Other places I've been have had the staff forbid this sort of activity and will ask patrons to keep it down or leave... that's the way it should be unless you are in a Gold's or some place that is just for bodybuilders.