No visitors allowed

After a recent "incident", the university decided to prohibit the international students from bringing any visitors to their dorm rooms. Friends or family, no-one is to go up to a student's room for any reason. The announcement comes with a threat written in red. It reads along the lines of; in case a visitor is found to in one of the rooms, the resident responsible for that room will be asked to move out of the dormitory.

Here is the incident that resulted in this ban on visitors: One night a female resident saw a group of  Japanese men walking freely and chatting loudly on the females only floor. She felt scared and reported to the administration. 

So the administration thought the best way to handle this situation was by prohibition. 

This reminds me of the typical orientation session one might receive at an Izakaya (a tavern). The first five minutes of your visit at a tavern may not be spent ordering drinks and food, but listening to a lady give a presentation about drunk driving, and how nobody should do it.

Taking responsibility as a person seems such a difficult task sometimes, and establishments are doing everything they can to eliminate any unwanted responsibility they might get from the actions of individuals.