Customer Service is a hard sword. Soem people just won't be pleased no matter what you do. Treat us like crap and yeah we will smile and still try hard to rectify any problem, but treat us good like the honest hard working folk we are and we will give 110%.
I wish everyone in the world was given this wisdom at some point in their lives.
I'm 30 years old. Since I was 15, I've worked in jobs that involved direct contact with customers in some capacity- either as a customer service rep or as a sales person. Customers who are understanding and patient when things don't go as planned *always* get better service and more for their money than customers who throw hissy fits. Always. No exceptions.
In my current job, I work in an auto repair/service shop...basically my job is to take care of customers so that the mechanics can do their thing and not have to worry about being "people" people. Now, of course, crap goes wrong in my business a LOT. Sometimes it's our fault. A LOT of the time, it isn't. Someone comes in for an tire rotation, a week later their battery dies...and they think it's somehow our fault. Sounds stupid, right? Crap like that happens every day.
Here's my point. When someone has an issue that is clearly not our fault but they're really nice about it? 90% of the time we'll find a way to take care of them. Even yesterday, the day before Thanksgiving, the shop ate $190 just to take care of a customer who had a run of bad luck involving a new set of high end tires without road hazard protection and rather large screw. Why would we do this? Because a few months prior to this, one of our guys accidentally forgot to fully tighten this customer's oil filter, which caused a leak in their garage. It was an honest mistake, but a mistake nonetheless. Instead of yelling at us and cussing us and such, customer simply told us that it wasn't a problem, just asked us to tighten down the filter and top off the oil. Smiled the whole time. So yeah- we were very happy to eat a near $200 tire to help a customer's bad day get better. Had this customer thrown a fit about the oil filter thing, we wouldn't have felt as generous.
Here in the south we have a saying: "You catch more flies with honey than with vinegar."