I have worked where I had a jerk boss, was assaulted by the inmates and been locked down during a riot (a prison). At the time I thought it was as close to a job in Hades as I was going to find in this life. So, when a local municipality offered me better pay, benefits and hourse to work in the city jail, I jumped at it. There I was assaulted by the Lt. In charge. I STILL gave 2 weeks notice. I didn't say a word about the conditions or anything else. I just thanked them for the learning opportunity the job afforded, stated my last day would be on XXXXX and started looking for a job.
Turns out, everything was caught on camera, the Lt no longer works there and I understand it's a much happier place and I was the ONLY employee who didn't file a law suit. Silly me, but I'd have chewed my arm off to get out of that place and I didn't want to re-live what all went on there by suing.
BUT, even though it all made the papers and everyone knows about it, I STILL won't say a bad word about working there in an interview. I just said, "It turned out to be a bad fit for me." when asked. New employers respect that I won't bad mouth a previous employer.