I brought my 2yo bike to run a basic service check...

I brought my 2yo bike to run a basic service checkup. The chain was out of the gear and also needed some oiling. As long as the owner found out that the bike was bought from one of his local competitors, he started criticizing it saying it was not a bike of good quality. He run the service in 2h, just oiling the chain.
The bike got broken after a week.