At the moment, I don't care how stupid this sounds.
I've spent the majority of my time in an academic setting, since I was 5 years old and in kindergarten. I'm now 24 and in doctoral school. I will never be okay when someone randomly takes my seat midway through the semester. I actually earned recognition in undergrad for my irrational anger associated with "seat stealing". I think it's rude and inconsiderate. It throws off my balance in the room, my process. For me to learn, I have to find comfort and a familiarity with my environment.
So girl who decided to steal my workspace with weeks left in the semester for no apparent reason: I don't appreciate you or your general self-centeredness. Social cues are very important to peace and productivity. I didn't learn a thing in stats class tonight due to my distraction in a new surrounding. Our final is in three weeks. I'm on to you.
sorta half totally joking on the seriousness of this offense on my list of general concerns.