Did you know it is covered under the equality act?
The link below takes you to a very interesting video regarding this from a Barrister. It gives you information about the obligations your school or college has to comply with. For example: Risk assess policies introduced; if aware of something upsetting staff, 1974 and 1999 Health and Safety Acts states they MUST do something about this. It is a long video, but excellent CPD in this area.