The best way to deal with rude strangers at the airport is to set an example for others. This includes educating yourself on the do’s and don’ts. But quite frankly, the problem is that you just don’t know what to do until you see the don’ts.
The airport is a terrible place to be during the holidays. Many things are beyond our control, like flight delays, but a lot of it is, like whether we decide to fight over reclined seats.
Be ready for the security line before the conveyor belt. You know that you’re going to have to pull out your liquids and take off your shoes if you’re not in Pre, so why not start removing your coat and things when there are only one to two people ahead of you before it’s your turn? This is the reason why I always pack my liquids and laptops in an extremely accessible spot.