My first car was a Sprite, I learned all sorts of "it's a wonder I ain't dead" lessons with that car. Didn't have proper jack stands, held it up with bricks, concrete blocks, large pieces of wood, remember the car rocking as I tried to loosen a stuck nut somewhere underneath, remember thinking "its not a very big car and I can move pretty fast if I need to", oh to be you and indestructible (at least in my own mind) again. Remember working on the back axle or brake line or something, for whatever reason I removed the nut holding the rear brake lines to the rear axle, thinking it probably wasn't that important, or maybe I lost it or was in a hurry to get the car back together to get somewhere. A few weeks later I learned about metal fatigue as the line gave way from bounced around just as I pulled slowly into the garage...That is just some of the stupid stuff as a mechanic, if you get into the stupid stuff as a driver the story would get much longer.