I will be honest, I don't fire a lot of customers. My personality is such that the PITA customers will eventually become dissatisfied and when I hear the words I think I need to find someone else, I pipe up and say " I agree". Hey everyone in the service business hates to lose a customer but remember this, if they are truly a PITA and they leave, they are going to hire your competitor. That always gives me a warm feeling inside. And if the comp. don't last so long, you know you were spot on.