Oh, man do I have some fessing up to do.
When I was 12 or 13 I got caught behind a Sprint 2 at the Malibu Gran Prix in Mt Laurel NJ. I had the back door off and was digging for tokens. They called the cops and my dad had to pick me up from the police station. Me and a buddy would routinely string the popular games in this place. It wasnt unusual to see Pac Man and Defender with 40+ credits on them.
When I got back to Cali it only got worse.
Marys deli in Redwood City CA. I had broken into ALL of the games and either put them on Freeplay or would coin them up for my friends as they came in.
Marine World in Redwood City CA. Lots of crap went down there. Breaking into games, stringing games, penny flipping games. I would get tossed out of the park by the GM of the Amusement Dept and one of his assistants would let me back in about 10 minutes later.

That place ended up being my first job, where I still broke into the games but this time to fix them cuz the operator sucked!
Probably my best one. Was working for Chuck E Cheese and we just got this new game, Ghost and Goblins. I was determined to finish that stupid game so one day after work I grabbed a stool and planted myself in front of it. Takes me 5+ HOURS to get to the final level.... I kill the last boss... Only to be told, by the game, that I needed a specific weapon to kill the last boss! Huh! WTF? It puts me back TWO DAMN LEVELS TO GET THE SHITTY SHIELD WEAPON! I get off of the stool and kick the ever loving hell out of the front of the game as hard as I could. I'm shocked that it didnt cave in.
There are a ton more of games that died by my hand but that was because we were scrapping them. Kinda in a mini Todd Tuckey mode we used to push games off of our dock (4 foot high).