It pees me right off. I went to an exhaust place with my sister in the 80s, it was her car.
The guy came out and started addressing me about the issues.
I said, "Please talk to my Sister...it's her car."
But what really annoyed me was they knew it was her car.
But regarding having blazing arguments, I bought a second hand Xantia TDi estate from a main dealer. It had a very low mileage, it was around 3 years old and had about 9K.
After a short time of driving, the STOP light came on. As soon as I could, I stopped and rang the dealer. No worries, I was told, bring it down as soon as you can and we will have a look at it.
So I took it straight home and then went straight to the dealer the very next morning.
Turned out the pads had gone down to the metal and forked the discs.
So I ended up having a shouting match (in a showroom with several customers in) with the service guy who argued it was wear and tear. I was arguing that I had only driven a few hundred miles, plus the system does not work if it it warns you to STOP after the damage is done!
So we agreed that they would pay for new discs and I would pay for new pads and they would cover the labour.