Wow. Oh, my.
One of the online discussion forums I frequent has a thread where someone asked for feedback on the website he's setting up to represent his business.
It was so peppered with spelling, grammar, and punctuation errors that one of the other forum members offered advice designed for someone for whom English was a second language.
The implications of this advice clearly went straight over the head of the site author, who responded jovially that he only knows one language, English.
I'm not sure he realizes that his writing made someone presume he's neither a native nor fluent user of English.
And I must admit... that was my own presumption on viewing the website, as well. I would offer to proofread the site, but there would be such a wholesale rewrite of the text involved that I fear it would cause offense to the site owner when he saw the sheer number of changes being made. Maybe someone who knows him a bit better than I do will be able to take on that task without causing hurt feeolings.