I knew someone who was a specialist in doing calibrations on some very specific industrial measurement equipment, much of which was out-of-date but massively ex

I knew someone who was a specialist in doing calibrations on some very specific industrial measurement equipment, much of which was out-of-date but massively expensive to replace. He had retired, but took another 12 or 18 month contract flying around the country servicing these things. Apparently they asked, and not wanting to do it he quoted what he thought was an insane "go away and leave me alone" fee, but then they said yes. (I have no idea what that fee was or what multiplier he applied, though it definitely brings to mind patio11's standard advice [1]). [1] https://www.kalzumeus.com/2006/08/14/you-can-probably-stand-to-charge-more/ https://www.kalzumeus.com/2006/08/14/you-can-probably-stand-...