Why is community theatre so bitchy?

EMAILNOTICES>noWhy is there so much politics and bitchiness behind the scenes? You can deny it all you want and go on about the camaraderie, of which there can be, but I know of people who are no longer involved in theatre because of this sort of rubbish, driven underground, too scared to audition, too scared to even go see a show because of some of the carry-ons of the past, preferring to avoid these people instead. It's not just one theatre, it happens at them all.