Take Their Time
The only thing that makes me really angry are those people who block the aisle to anyone behind them while taking their sweet time getting in their seats. After spending 30 seconds jiggling their carry-on perfectly into the overhead compartment, they stand in the aisle for another minute, adjusting their belt or jacket, etc. before moving to their window seat.
When I am behind someone like this, I give them an piercing look the whole time. The person is still unaware that they are not the only one on the flight, the world does not revolve around them and other passengers also want to reach THEIR seats. My blood pressure is already rising when I think about it.
