George R. R. Martin

George R. R. Martin is an author.

History
He was seen walking around outside Moe's wearing a sign saying "the end is not nigh. I'll tell you when it's nigh."

Behind the Laughter
George R. R. Martin is the author of the  series of books, which was later adapted into the TV series Game of Thrones. The sign he was wearing is a reference to Martin not having completed the book series.