Evil Editor was sitting in his office when a cow walked in, clutching a manuscript in her mouth. "Not interested," EE said.
"But it's right up your alley. Zombies, sharks, and a eunuch."
"A brutal eunuch?"
"Sorry, no sale."
The manuscript later sold to Random House with a three million dollar advance.
Moral: Fifteen percent of three million isn't bad, but a month with nothing to edit is priceless.