The Myth. Egg boxes are banned in craft lessons as they might cause salmonella
The Reality: The story started after a school briefly banned children from using cardboard egg boxes to make things. They were concerned that children might catch salmonella. Within a few years the school realised there was guidance from the county council and an organisation for teachers called CLEAPPS, making clear that as long as egg boxes and toilet roll centres look clean, there is no reason why they should not be used!