Reason for leaving last job?

[COLOR=rgba(0, 0, 0, 0.701961)]I just got my CDL learner's permit, and want to start applying for pre-hires, but would like some advice for how to answer the above question both in the application and during the interview.

I graduated from the university just a few years ago, and have had a large number of short-term jobs, and if I would have to put ten years of work history, then there are going to be multiple gaps, because of studies, trips and volunteering. Plus I was living with my parents at times.

I spent a year or two getting a sole proprietorship up and running, so I had lots of periods of unemployment during that time.

My last job This past year I was intending to last one year, until starting CDL school, but I only lasted nine months. I had a "last straw" moment with my supervisor. The guy had serious anger issues, yelled at his workers, screamed profanity, trembled and got red in the face for small mishaps. The worker who had been there 20 years was treated the worst.

I didn't react unprofessionally to any of his behavior, but my last day there I had a miscommunication with a co-worker, it wan't a big deal I had some deliveries to get ready for my route (I was a straight truck driver). I asked over the radio if the merchandise was ready, and did not hear a yes, so I continued loading merchandise for other routes instead. Eventually I was confronted by the supervisor who wanted to know why my truck wasn't ready yet. I told him my merchandise wasn't ready yet, so I was using the time to get other trucks loaded. The supervisor then exploded at me, and proceeded to work himself into a fit, screaming profanities at me, fuming at the ears. I felt unsafe, as he looked like he was going to assault me or something. I told him I needed to take a breather ( I really was worried about my safety) so I went to my car with the intention of turning on my cell phone's recorder. He followed me to my car. And started banging on my windows. I waited a moment till he calmed down a bit, the turned on my recorder and exited the vehicle. Well long story short I recorded him calling me a ##### and making innapropriate comments about my genitals.

Later that same morning he apologized to me, told me I'm a good worker, have perfect attendance, a good driver, never had a complaint about me from a customer, etc, etc.

Later that day, while on my route, I told one of their wholesale customers about the behavior I was subjected to. They expressed their concern.

When I got back to the station, the boss wanted to talk to me about "a call" he received from one of his customers. My supervisor told me to wait after work after everyone had left. And then pulled me into his office in order to get my confession of what I told their customer. I didn't admit anything, and just asked him, "well what did they tell you?" There was so much tension, and he was clearly enraged again, plus there was no one else around. My goal was to get out of their as fast as I could. I told him I had to go, and that my family was waiting for me. So I just walked away.

The Next day was the last day of the week, so I called in and told them I wasn't coming in because I hadn't slept because of the anxiety caused by the way the supervisor mistreated me.

That weekend I spoke with the manager on the phone, and told him I quit, thanked him for the opportunity to work, and said that I don't want to be in that kind of situation. He said he completely understood, and didn't sound angry at all.

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Now when I answer the question in a job interview, I'm thinking about saying I quit because of harassment. If the interviewer asks me to explain, then I think it would be best to be brief and just say that the manager used a lot of profanity and made innapropriate comments about my genitals. "I believe in working with a certain level of professionalism that just wasn't there in that job."

Otherwise the other reasons for quitting were because, the business' off season was coming, and I wasn't going to be doing anymore deliveries for a few months, so I decided to enroll in CDL school instead, and start studying for it.

This answer doesn't open up a can of worms, and is true, but my supervisor certainly wouldn't say the same thing if they contact him. Plus it doesn't really excuse why I left without giving a two week notice.

Any advice about what to say? Am I just being too worried about the question?[/COLOR]