I rarely have difficult clients! When I do, honesty is the key to working it out. If someone doesn't like what I've done, I ask them to tell me what didn't work. On occasion, when someone has been repeatedly unhappy, I've told them that I obviously can't give them what they want, and recommend another stylist. But the response is always, "Oh, it's not you!" Usually those people are just unhappy with their hair -- they hate the wave or straightness, not what I did. I think, generally, that it works to troubleshoot problems together, and I think of it as a positive thing. I also always welcome my clients to come back at the end of the day if they're not happy with the style or have any challenges.