I, and many others, had the experience of a certain CFI who exhibited a 'Nazi' style of management at a particular place not far from BPK VOR - sometimes referred to as the 'Banana Plantation'. As he owned the school we didn't have much luck. In my experience the more intrenched the indivdual is the more likely they are to adopt unpleasant attitudes towards the staff and thus making it very unlikely that a coup will succeed! Voting with your feet is the only way that you can have any effect, there is work out there so getting another position should be relatively straight forward.