Yeah, I did a design for a large company before reading their full T&C. Ok, they got me on the development. It included things like a requirement on me to carry $3 mil of liability insurance.
Before I sold them any boards they had to accept *my* T&C. In fact they do their manufacturing through a large contract outfit. THEY had to accept my T&C before I sell to them as well. Every PO they send has their T&C included so I require a specific acceptance of my T&C.