Exeat Chit
A single-entry visa that permits you to travel to Narayansthan and to legally enter the school after your travel. If you have enough Pocket Money and an exeat chit, you won't have to visit Black Gate or even the Dining Hall. Most students smuggle Food when they get back.
I got the exeat chit so there was no reason to take risk at Black Gate.
Contributed by aalu_khoj