My evil nemesis is John Scalzi, science fiction writer. We are very good friends, but he is also my evil nemesis. One time I was at a book store in an airport. i like to sign my books in airports and leave them for fans to find and i was doing this and someone came to the section in the airport. I was signing and they said "Oh, you're a writer?" and I said "yes!" here's my book, its great, you should read it." They said "I don't like fantasy, I like science fiction instead." I went 'alright' and so i sold them one of john Scalzi's books just because I wanted to match the right book to the right person.
I heard "Sanderson!" and I turned around and it was John Scalzi. He said, "I heard you siold one of my books, here's your royalties", and he threw two coins at me, all across the hall.