I've been a mechanic long before I could hold a job. I repaired my mothers washing machine since the time I was 13. New Pump, new belt...etc, it lasted over 20 years. At 17 I pumped gas and worked on cars, got a job in a marina and packaged new boats, start to finish and put the Draw-Tite hitch on your car to boot. I have seen some horrible things that morons who are hired as mechanics have done. Beat the end of a prop shaft into the garbage as there was no coming back from the misuse and then blame the owner for not taking the prop off often enough. Put bottom paint on a boat who's paint was peeling off. The last yard that tried to take off my prop beat the hell out of the back of it with God only knows what and told me they couldn't get the prop off. I had to go to the boat with a puller and a torch and I saw the marks they left in the back of the hub. Had the prop in my hand in ten minutes without any brutal force, a little tension from a puller and a little heat from the torch. I hate having anyone touch my boat or my vehicle. There are so few craftsmen left that actually know their trade and ply it well. It's a shame to hear all the horror stories, it's more of a shame that we can't shut the morons down.