Recently I gave my students an exam. The students had spent all semester next to the same people, with whom they likely studied. So, the first thing I did for the exam was rearrange the classroom. I didn’t want people to be comfortable enough to cheat. I also encouraged students to spread out a little bit. Several seats were available in the back of the room.
Three students arrived late. I handed the first one a test and told him to sit in the front because one large gap was available there. I then handed tests to the other two and told them to go to the back of the classroom.