Really ‘blind’ reviewing

I guess it was inevitable. As an editor, it is tough finding reviewers for papers and I get a little sad every time someone really suitable declines. Of course, I can only be so upset when I get a polite decline like this:

Dear Editor,
I will be happy to review a paper for your journal, but this paper is my own.
sincerely,

Well, I thought the reviewer was really suitable. Fortunately, they were honest too. Back to the drawing board on that one.