As can be seen in this chart, "Google search results for "KH(Ax)N" for x=1 to 100," there's a real spike of "AAAAA"s around 40 and 50. That's a lot of reptitious typing! Also, you have to admire the bloody-minded preserverence of the folks over there at 97-100 "AAAAA"s. Also, RIP, Ricardo Montalban.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.