You have a point though, this is why it is extremely important as a business owner to always be honest. Cause if you run your business honestly, no matter how others come and talk bad about your business, it would be hard for people to believe cause they know you have always been honest.The truth is that you try to be as courteous as possible to every customer but ignore those bad ones. Let them go and spoil your name, those that know your reputation would still patronize you.