Such a waste of time and increased stress level coming from all that signature and fingerprint scan. You can put a fingerprint scanner on the door to use just before entering. Why signature ?
Fingerprint,writing down ur details during every break is absolutely unnecessary! Gosh, you'll could atleast verify the person's identify by crosschecking with their photo or something. STUDENTS ARE ALREADY UNDER A LOT OF PRESSURE, let them pee in peace!