There are many ways you can be uncomfortable. One of the ways is the not so obvious picture. Some people like their personal space. One of the ways to avoid this chaos is to stay in class and make sure you have everything you need. Most bullying happens here too. See that kid in the left corner? He has nothing to do with this sentence. But he is very disturbed for the fact he has a little space before someone gets shoved into his face. Logic. There is also more people outside than this picture. See that other kid waving his hand at the camera? He is enjoying that there's some time to be with other people. Use PAWS in the hallway, I'm pretty sure it's loud if that picture were real.
You're doing it wrong. ._.