SUV hits tire off pickup

Killer6 said
No lie. I had a dude come in with a **** brake pedal, no fluid, so I topped it off & did a quick walk around. I could see fluid on the Dr. Rr. backing plate, so I threw a jack under the pinch weld & got it up, yanked the wheel & drum. Wheel cyl. hemmorage of course, (common on this GM model), so I got Him a quick(&reasonable) quote. "HOW MUCH!?, NOPE, PUT IT BACK TOGETHER!!"
I did so & He asked how much He owed, I quickly said "We're good". He backed up & left, & soon as He was out of sight I turned to everbody in the shop & said "that Dude was never F'n here, got it?"

I had more than enough incidents just like that when I worked in the automotive field. Our response was usually about the same as yours. "Take your car and F off!"
There was another shop half a mile down the road from us that did piss poor work and charged outrageous prices. More than once a car came in to us that had just been there, and barely made it to our yard. We turned most of them away so we wouldn't have to correct their messes or be blamed for the shitty work they did.