Yea can't stand work environments like that, I outgrew the oilcan & grease gun fights when I turned 16.
Heard stories about dealership pranks, best one was new mechanic with the then coming up massive SnapOn toolbox's, guy was a dick, friend told me they'd drilled holes and screwed in grease fittings to the boxes... you can guess what they did next... power filled all the boxes with grease.
Last job I worked at in a Hospital Facility Operation was full of reject jackasses from up north & Katrina Refugees. Go to pull a box of electrical connectors off the top shelf, someone had opened the perforated cutout to make the box a open parts bin, closed it back up and put on shelf upside down. End result all on floor, retards.
Found out 2 of them could hardly read, I can understand the 50+ guy from Kentucky, but lil'Bobbie from Louisiana in his young 30's, no excuse in this day and age.
Only came across working at a dealership twice in my life, once at a Porsche dealership, plenty of perks, send me to school etc. I knew a Sales Manager(?), nice guy, I use to crew on his sport fishing boat, they were desperate to get mechanics. 2nd was at a Dodge Dealership, one that had been locally owned then swallowed up by a Mega-Dealer, old roommate bragged he was Service Manager, go in to talk, am reminded about Flat Rate pay, see that old roommate is not Service Manager but 'Service Writer'. I'm polite but, come too easily figure out that the new guys get all the warranty work and Chrysler at the time only paid $6.00hr per flat rate book, and being the new Mega-Dealer status, they got plenty of warranty work.
Only 2 people in the shop were on salary, Body Shop Manager & Service Manager, No Thank You, I was in my 30's by then and had 15 years exp (although not entirely with cars) and never worked flat rate. (hourly + overtime). Oh wait one more, rich family classmate opened a Kawasaki Dealership, (Parents owned Volvo Dealership in town), I was prodded by a business associate of mine (Motocross days) to go in and talk, when all hi how-do-you-do's remember me old times were done I did a head swivel around the place (look at) and politely said thank you very much but no thanks. All parties were happy... Dealership didn't make it past 1st year IIRC.
Crap like you describe at that dealership makes them wide open for a massive lawsuit. In fact the hospital I worked for at the time was going through a whistle-blower lawsuit that was finally settled with the Fed's for 100 million dollars which (at the time) was the largest Medicare fraud settlement in the country soon to be surpassed by a hospital up in Indiana(?). Lovely!