Guilty of the last one. I sort of thought it would be a good idea to trash talk the competitor (my previous employer), but when I saw the look on the CEOs face

Guilty of the last one. I sort of thought it would be a good idea to trash talk the competitor (my previous employer), but when I saw the look on the CEOs face I knew I screwed up. Got the job anyway, based on other circumstances (and maybe also because it was common knowledge in the industry that the previous employer really was a nutter, which later became a matter of public record in a court case). But generally, definitely not a good idea to badmouth anyone in job interviews. Or ever, even.