So one of the university buildings here has the wonderful washroom design where the stalls have massive 3/4" gaps in the door and said gap is aligned such that it's dead centre to the washroom entrance. I've always questioned who ever put those stalls in.
![Roll Eyes ::)](/Smileys/default/rolleyes.gif)
Bonus, the washroom is one of those newer design ones that don't have doors between the corridor and the washroom.
Anyway a metal plate on the door should cover up said gap.