Treasure coving an Earthshaker playfield. I borrowed my mates drill which was way more powerful than mine (i think this thing was used in the channel tunnel construction!!)
Anyway like a fool i span it up too quick and promptly turned the playfield paint to dust straight to the wood. Aggggghhhhhh. I still cringe about it and that was years ago.
I still didn't learn my lesson and did exactly the same thing on a big hurt cabinet a few months later.