This is certainly news to me.
My daughter had her (expensive) graphing calculator stolen out of her backpack (along with some other items) while she was studying in the library when she was a student at University of Rochester. (I remember it because the circumstances were especially annoying since I had to overnight ship her a new one because she had an exam coming up where she needed the calculator.)
Also all her exams were scheduled and all sections of math/science classes took the exam at the same time. (She experienced scheduled exams both as a student and as a TA/grader for the math dept.)