[Retired]

I'm sure we all have some things that we have done while working on our cars... I'll share one from about 2 years ago.

Car was washed, waxed and ready for a car show. I pulled it out into the street, put it in park and set the e. brake... left it running.
I went back into the garage to get something - when I turned around, the car was gone. Vanished...

I ran back out of the garage and it and the neighbors mailbox were having an intimate moment. I actually did NOT put it in park - rather it was in neutral and, I did NOT fully push down on the e. brake.
The road in front is downhill and had the wheels not been cocked to the right a bit, the car would have gone down the street and into a ravine.

Final note: Haggarty insurance completely covered the repair. They were awesome... Me? Not so awesome....