More than 20 years ago, at the company where I was working, I needed to order some sort of expensive thing. Printing a purchase order on the dot matrix printer connected to our accounting computer was a hassle, so I duplicated the form in whatever word processing program we were using on the Apple Mac. It even said Purchase Order at the top.

I faxed it to the vendor, and received a reply: "We will ship the item when we receive a copy of the actual purchase order."

I did nothing but re-print the order in Courier font, and faxed it to them. It was just the ticket. The boss said, "Now you know why we keep that old dot matrix printer on the accounting computer."