Yeah, its one of the reasons I decided to give up on playing WoW (as well as not having the time). I found that going dungeoning you would sometimes have a great party where everyones out to have fun and help eachother, however you will get absolute douches. My character is a tank, and I think I do my job pretty well, however sometimes you'll get idiots who expect too much from you and just give you abuse (they'll normally attract the aggro themselves and it can be incredibly hard to get it back off them). I tend to say that if they don't think i'm doing my job properly, how I can improve, but they seem to have more fun taunting and making my job physically harder. These tend to be the people who dungeon-rush too. I thought for a while that maybe I am crap at my job, but other people have had no problem and think I do it fine.

I guess it is also the trouble being a well-mannered, well-spoken person on a server full of arrogant no-lifes. They really sap the fun out of anything.