Apparently, the American computer giant IBM decided to have some parts manufactured in Japan as a trial. In the specifications, they set standard that they will accept only three defective pieces per 10,000 pieces.

When the delivery came to IBM there was a letter accompanying it.

“We, Japanese people, had a hard time understanding North American business practices. But the three defective parts per 10,000 pieces have been separately manufactured and have been included in the consignment in a separate package mentioned — ‘Defective pieces as required; not for use.’ Hope this meets your requirement”

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