I left this company a year ago, and in December my previous supervisor got promoted to Operations Manager. He called me and laid out a seriously good offer. If I were to go back on the production floor to help get them out of a mess and train people (i am a specialized machinist) i would get a pay raise, maximum 50 hr work week (voluntary after that), sign on bonus, 4 weeks of vacation, and in 18-24 months a promotion into program management (I was already on that path with another company). I accepted on the condition that I get it all in writing.
I accepted, resigned from the other company I worked at, and went back to training people and making parts.
I found put that the new supervisor was not privy to the conditions of my return when I had to put my foot down about 50 hr work weeks. He didn't like that I was allowed to pick when I worked extra and was very vocal about it.
Six months goes by and I was under quite a bit of stress at home, and was distracted. I ruined 2 parts within 2 weeks of each other, and their estimate was it was a total of $14k lost (manager also let me know I had made them $250k profit in 6 months). I knew I had messed up, but I also know that I could remake the parts in a few weeks.
Next day I get brought into HR. The supervisor had chosen to escalate past verbal and 1st written, straight to 2nd written warning for insubordination due to not following his order to have someone double check everything I do (I made a mistake at 5am, and forgot to have anyone check me.)
I was then told that if I ruined any other parts in 90 days, I was terminated, and that any other insubordination ever would be instant termination.
Along with that, they were going to remove my future promotion to Program Management due to not being a leader and working over 50 hrs a week.
I was angry, but refused to let them see it (that would truly be bad leadership.) I also didn't remind them that 2 weeks beforehand I told them that I was approached by 2 other companies and I turned them down.
I had an interview scheduled before I left that day, and a job offer in Program Management for another company before the weekend.
I was asked to immediately leave the building when I turned in my 2 week notice.
As I was leaving, I had 3 other coworkers come up to me and ask me to put in a word with the company I am going to, because they don't agree with what they did to me.