I seem to remember, back when my D/S was a plebe, the company training officer got mad at them for something and ordered them all to turn their cell phones over to him as a punishment. They complied, of course, but not until every one of them had set the alarm clocks to go off at random times beginning at 3 A.M. Two lessons here, 1) the upperclassmen will use cell phones as weapons/punishment. 2) The plebes will eventually figure that place out and find a way to have fun.