He's probably being paid by the job and not the hour just like a mechanic. My DH used to get a gift or two around the holidays from a few customers but that hasn't happened in a long time. He works at a higher end dealer. They had a few customers that would by lunch or bring a fruit basket, bottle of wine... but again, it's been years since that's happened. Now they complain about the cost and try to get the service writer to knock some time off that ends up coming right out of the mechanic's pocket.