I used to work in a medical equipment company, which had a Japanese reseller doing our main product for Japan, which was a double-fist sized(ish) unit with an L

I used to work in a medical equipment company, which had a Japanese reseller doing our main product for Japan, which was a double-fist sized(ish) unit with an LCD. We'd ship them off, finished from manufacturing, then they'd have their own team that would quality check them again. I remember one of our service blokes opening up one of the returns-for-rework. They gave detailed reports and sticky-label arrows for faults, and sure enough, this rework unit had them as well for the fault - a small speck of dirt on the LCD. The tech touched the dirt with his finger and it fell off. Rework complete. They'd sent it back on principle, but it's a nice little story of the attention to detail and formality that they had. The actual model in question was actually 10 years and two major generations of hardware obsolete, but it was so difficult getting an item through the regulatory red tape, we didn't bother doing it with the newer gen hardware.