You could have 50 threads about the different things certain types of people tend to do in a rude and selfish way. We see the fastpass clog-up all the time when we are there and the bottom line is that you just have to say excuse me politely and if that doesnt work (it usually wont), you just have to be bold enough to push through. And yes, when you do, you will get the dirty look from them, but who cares? some people are just too dumb to get it.