I knew on the 3 months, I just woke up the one day and said enough was enough and I wanted out. Hard to explain but I just am done busting fingers getting dirty changing engines, springs transmissions brakes etc. Everyone drives them like they stole them!!! That day I called my supervisor on what would work best with him so I could go as soon as possible. He had to find someone, he had a vacation, so did I and he will be up next week to close out the shop with me.(why I worked with him because I had off the job injury 2 years ago and he kept me working for the year by sending heavy jobs out) 3 months I would have lost another summer. The only time of year I enjoy.