This otherwise amusing story has some serious lessons: John: Yes, I'm calling to find out why request number 48931258 to transfer was rejected. ISP: Oh, it was rejected because the request wasn't submitted on company letterhead. John: Oh... sure... but... uh, just so we're on the same page, can you define exactly what you mean by 'company letterhead?' ISP: Well, you know, it has the company's logo, maybe a phone number and web site address... that sort of thing. I mean, your fax l[...]

via Security by Letterhead