About ten years ago, I took my W123 300D in for an oil change just before leaving on vacation. I went to Jiffy Lube and waited the 30-45 minutes to have the car's oil/filter change.

Got the car back and drove down the street to the wash to have it rinsed off before the 7 hour drive. There, I noticed 7 or 8 little "dots" on the front fender....what's this?

Turns out the guy servicing the car tried to add water to the battery and battery acid splashed onto the fender. The acid dissolved the paint where it had splashed and was down to the bare metal! I went back immediately and spoke wth the manager. Filed insurance forms, etc. They fired the employee for not fessing up to his mistake.