rjh01
Gentleman of leisure
Closing the door is not for the protection of others, it is there for the protection of the person using the facilities. This gives a simple solution.
When the person enters the room in question, gather some people, preferably of both genders and get them to view what happens and comment loudly as if it was a sporting event. Discuss this action with the spectators beforehand so they know what to do.
When the person enters the room in question, gather some people, preferably of both genders and get them to view what happens and comment loudly as if it was a sporting event. Discuss this action with the spectators beforehand so they know what to do.