Traditionally, we aren't supposed to talk bad about your previous employer. But the thing is, the interviewer will always ask why would you want to leave your current company. It will be too generic if we kept on saying 'better prospect'.

During an interview, I honestly told the interviewer that I am uneasy with the my ex-company's management. This sounds like a suicidal move in most interviews. But since I have solid facts to justify my words, I managed to turn it into an advantage. Well, I did get the job but I'm not sure if the honesty played a major part in decision making.