Replying to Airport

I currently hold a job that requires me to travel a lot. Therefore, I have been spending more and more time in airports. Everyone knows that air travel can be a pain in the ass, but there are some things that really piss me off that are unnecessary!

1) When people create a huge mob around the boarding gate and prevent you from getting on during your boarding group.

2) People who crowd around the baggage carousel and make it impossible to get your bag off the belt!

People turn into animals at the airport and it makes the hassle of air travel that much worse!

So, NSers, what pisses you off about flying?