At work, there is a renovation going on at one of our buildings, so all of the offices have to be moved elsewhere on campus for the next two years.
My department is one of the few cubicle farms on campus. We handle ordering/processing/data-management/etc. We have student workers, and we all have different jobs with different specialties, so we have several "work station" cubicles aside from our own "office cubicles" (there are also several offices in our area, but I don't have enough seniority to get one yet).
What really grinds my gears is when they let one of the displaced departments come in and take over our cubicles, and those people proceed to make a mockery of the work environment that we have created. I do not want to hear your 10-minute phone convo with your friend. I do not want to hear your terrible morning talk-radio over my own, personal ear-buds. It's too loud, AND it's terrible radio.
I don't mind that we're sharing space at all. But when the entire department that we are sharing space with is a bunch of inconsiderate douchers that lack all sense of situational awareness? That really grinds my gears.