You know what's interesting? When I first came to the USA, I got this email and I counted ALL letters F. Now I did it again and I only found FOUR of them. How is it possible? When I did the test first, I've been living in the USA for only a year or so, so I didn't have English language in my blood yet. However, now, seven years later, English became a part of me and therefore, I didn't see all six letters F. Interesting, isn't it?