How cruel do you want to be?

Very cruel, with a particular emphasis on pee

Girls at the university ought to be suffering more extremely than their counterparts in the wider world, so you set about formulating some regulations to really put them through an ordeal they'll never forget.

New Rule: Students undergoing nudity punishments may only spend the minimum amount of time in their rooms necessary. They must remain in public whenever possible, including sleeping. This will be monitored using Wi-Fi-enabled cameras obtainable from the porters' lodge.

New Rule: Students undergoing nudity punishments may not use furniture, such as chairs or beds, without permission.

New Rule: Students undergoing nudity punishments may only use the lavatory when given permission by a staff member. They may not ask for such permission. When they do receive permission, they must urinate into the cistern which supplies the special outside showers they have to use. Others may choose to urinate into the cistern also.

New Rule: Students undergoing nudity punishments are often required to lewdly expose their genitals to check for signs of arousal. The presence of such signs results in harsh punishment, including the possibility of extending the denial period.

You read the rules over again and decide that you're satisfied they'll achieve the desired effect. After all, you can change them later if you're unhappy with the results.