"...... sometimes we see some teachers being dismissed not because of being unqualified, but for other reasons like the teacher having sudden changes which may not rhyme with the desires of the school and its policy. Such sudden changes may result in immediate dismissal. The problem is that they don't tell the teacher the actual cause of dismissal. ....
They can't tell him/her it is because you did something wrong; being different is not a logical accusation. The problem would be that such values are not matching with the school values and preferences. In such sensitive cases the least to say is that the invented excuseswon't be a real cause of dismissal."

Sorry to hear that. Did it happen lately to someone ?

not lately but few years ago

but I think it happens regularly