Growing up and going to Catholic elementary school, I learned to cover my paper during tests so as not to tempt anyone into cheating off my paper.
When I was in Geometry class in 10th gr. I sat in a back corner with several friends. Once the teacher made a remark that they could be doing better because I did so well. They said "How can we, she covers her paper during tests!". The teacher just laughed and said that's not exactly what she meant!