It has nothing to do with size. The TSA staff in the post communist country where I come from are jerks and they roll their eyes every time someone makes a mist

It has nothing to do with size. The TSA staff in the post communist country where I come from are jerks and they roll their eyes every time someone makes a mistake. But TSA staff at most large international airports is trained to understand that people will make mistakes no matter what and that their role is not to move trays but to help people. SO simply never prioritised helping people over providing them with correct technical answers so it is only natural that some of the mods beehive like knowitall-bully-jerks.