This one has been tweeted about across the globe so I asked the author, David Thorne, if he would mind me sharing it on DCR. Its not exactly a complaint letter but is a series of formal complaints allegedly made about David by a work colleague. It first appeared on David's utterly brilliant 27b/6 Blog (link in the sidebar).
David has also published a book containing much of the correspondence from the 27b/6 blog: 'The Internet is a Playground - Irreverent Correspondences of an Evil Online Genius' [ISBN 978-1-58542-881-6]
Anyway, this one is about complaints and it's very funny, so here it is:
Ten F26-A formal complaint notices
in six months.
Apparently after receiving three, you are meant to have some kind of formal meeting between the parties involved but this never happened. According to the rules, if there are five complaints, an external mediator has to be bought in. This didn't happen either and I was quite disappointed.
I don't really have anything against Simon apart from the fact that he likes the band Nickelback and has no sense of humour; I just get bored. There have actually been twelve formal complaints by Simon against me but two of those were complaining that nothing had been done about the previous formal complaints so I didn't bother scanning those in.