Which is why I refuse to ever have photography customers. As you've heard me state over the years, this is my hobby. I have enough grief in my professional work; why screw up my play time?
But that puts our experiences and outlooks in totally different modalities. I can make a mistake, and I only have one taskmaster, myself. And I can take risks of a failed project without fear of loss aside from time and material. I have no bottom line. Photography is a 100% sunk cost for me.