In South Park the TV show, Stan, Kyle, Kenny and Cartman found a place underground where gnomes work constantly; step number one is to steal underwear, step three is to take over the world and no one knows what step two is.
Stan:"So what do you do?"
Gnome:"Step one, steal underpants. Step three take over the world!!"
Stan:"So what is step number 2?"
Gnome 1 :*pauses*"um, hey guys what's step two?"
Gnome 2 :*shruggs* "I don't know."