Last night I dreamed something weird. I was part of some sort of city that lived exclusively in one very large building like a big mall. Someone was attacking/invading us and I somehow ended up as part of the makeshift army, it wasn't something I wanted to do but I felt it was my responsibility, even if I would've preferred not to harm anyone. The attacks from the invader came at night and we didn't know where they would be, so we basically roamed the building, either by ourselves or in group...