How do you grow a skin tough enough to ward off disparaging comments and mean-spirited critiques? When you stand out, speak up, and do something worth doing, haters are part of the deal... and they're enough to make some of us quail.
Rich Gallagher's advice applies not only to customers but to everyone else you cross paths with. Rich's new book is The Customer Service Survival Kit, but I think it's misnamed. The Relationship Survival Kit is more like it, in my opinion.