Being railroaded by a colleague and accused of project sabotage, then having to submit to a 2 hour interrogation where I was literally sat in a corner and read a riot act. I had done nothing of which I was being accused. I sic'ed HR on them in a followup meeting but all HR did was sit and listen and then find in their favor despite the written evidence because my manager outranked the HR manager. That was when I learned that employees are always wrong when the manager wants them to be. I freelance now. No manager, and I can fire my clients.