"Do I really look like a guy with a plan? You know what I am? I’m a dog chasing cars. I wouldn’t know what to do with one if I caught it! You know, I just, do things. The mob has plans, the cops have plans, Gordon’s got plans. You know, they’re schemers. Schemers trying to control their worlds. I’m not a schemer. I try to show the schemers how, pathetic, their attempts to control things really are." - The Joker
In order to develop joker with VIM, just set these two configurations in your .vimrc file:
set exrc
set secure