A pupil in Scotland told their school they identified as a fox amid what teaching unions have warned is a 'toxic' environment for staff.
Secondary teachers have been left fearing disciplinary action for either denying children their rights or indulging bizarre whims.
Union leaders are now demanding that ministers and councils act decisively to clear up the moral minefield.
Last week, Prime Minister Rishi Sunak ordered head-teachers to confront outlandish identities after children in England and Wales declared themselves to be cats, dinosaurs, horses – and even a moon.
Seamus Searson, general secretary of the Scottish Secondary Teachers' Association, said: 'The Scottish Government's policy has opened the door to all sorts of strange things, and it's an environment that is very toxic.
'Our job is to try to protect teachers and stop them from getting into more trouble than they're already in.
'It's a very difficult time for teachers because of the Scottish Government and the actions it took and then [the Gender Recognition Reform Bill] getting blocked by Westminster. They feel they're damned if they do and damned if they don't.