It's an inevitability in any business; you can't please every customer and, eventually, someone will get upset. But what matters is how you deal with their expectations and come to a common solution.

Prince William was reportedly furious over the conspiracy theories and rumors swirling online about his wife, Kate Middleton, prior to her cancer diagnosis being revealed, an ex-staffer claims. The ...

Opinions expressed by Entrepreneur contributors are their own. Here’s the bad news: an angry customer is breathing down your neck or tearing you up over the phone, shooting daggers at you via e-mail.