My university canteen. There is a staff canteen. Students are not allowed to eat. Don't let the students in. My classmate said. He went in for dinner. Why? Someone took him in.
The staff canteen is for the staff in the school or their families. Students are not allowed to go in, but sometimes there are good things from good teachers or family members to take in. The staff in the canteen will not know all of them, or even not. If others are relatives of the leader, that's not good.