This week, I dropped a client of seven years. That I spent my entire weekend mitigating their incompetence is not a coincidence. Why, I sent my contract-termination email during that very weekend.
Example exchange from the increasingly panicked phone calls:
"Despite all that effort," I grumbled, "We can't fix something fundamentally incompetent."
"I don't agree that it's incompetent."
"You don't need to. I don't want my company exposed to that sort of liability."
"What if we pay you more money?"
"No. That would just be more liability."
And thus my vilification has begun. They haven't actually used the word "particular," but I can feel it coming.