Since customers are always right it does make it interesting to tell them the only fixtures you will install do not have a temperature requirement. That usually means fixtures with a drop. Still lots of choices but almost no fixture that mounts directly on the box is required to be supplied with 90 degree wire. My company had such a customer and I refused to install 2 fixtures which I thought should be rewired with NMD90. The boss backed me and asked the customer to sign a letter verifying we did not install his fixtures so we would not be held liable. I installed blank covers and left. I don't know if the customer installed the fixtures or rewired the outlet but we stopped working for them at the same time.
I must say I loved working there because they had a quality and accuracy policy. Our motto was get good first and get fast later. My Superintendant always asked a prospective employee some question about mistakes and what would you do. No one who claimed to not make mistakes was ever hired nor was anyone that did not immediately answer they would bring it to the company's attention ASAP.
