I just got thrown out. I have a two hour break between my math and my controlling lecture. After I went to the cafeteria to eat lunch, I wanted to spend my time being productive. I walked to the business administration department so that I could work for as long as possible (due to the shorter way to the lecture room) before going to the lecture. Upon my arrival I realized that no lecture takes places in this particular room in the timeslot before my lecture. I figured that I just take my usual seat and work in there, effectively maximizing my working time. A few minutes later, a woman came into the room and asked me what I was doing in here. I told her that I was doing work while waiting for my lecture that will be in about one hour in this room. She got really mad, almost shouting at me that this is no place to work or spend your free time. After that, she asked me to leave until my lecture begins. Have you experienced similar things in your university? I have never experienced something like it at the computer science department, where no one cares where you work as long as you do not disturb anyone.