I saw two of them.

Years ago when I was working weekends at Napa Auto Parts, a guy came in and asked if we had a radiator hose in stock for a Saab. Sure enough we did. The guy said "thank god, I've driven all over town looking for one." Didn't think much of the comment until he came back in and said his car wouldn't start. Out in the parking lot was a nice new Saab with a seized engine complete with cracked block.

Number two was a young college girl changing a flat tire on her BMW. The bumper jack was hooked under the fender next to the front tire. She couldn't get the tire off the car with the jack in the way. I don't know what her problem was, she bent the fender enough there should have been plenty of room to work.

What is the worst you have seen?

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1983 300SD "Guderian"
1987 MR2
2015 Camry
2015 Chevy Spark
2006 Hyundai Tucson