Puc you mentioned shop class, mine was in an auto body class at vocational school during high school. Our town was built on the car business. We were known as the used car capital of the world for years. Part of that was buying wrecks and rebuilding, one hit in front- one hit in rear- cut em in half and weld the good parts together. This was before internet and car fax. The less scrupulous guys would then buy a car without a title and attach the vin plate from one of the wrecks and sell it. Won't mention where they got the untitled cars. Used cars, wrecked cars, 90,000 mile cars with odometer cut, chop shops, forged titles, you name it. Literally hundreds per week rolled thru here. Then the insurance companies got together and started branding the titles on the internet and a bunch of dealers went to jail. When it all went down the local guys were sitting on hundreds of nice rebuilt cars they couldn't sell, many abandoned at out of state auto auctions. Some of the best welders around learned on these cars, when finished an auto expert couldn't tell the difference between a rebuilt car and a new one. They were that good.