"I have this idea which brings me and you a lot of money. But i can't pay you yet, you have to work for free. And no, the idea isn't already coded there is nothing like it. If you can code it, i will give you 1000$ if it's released."

Yeah, well, no. If i've anything learned in may short career of coding professionally: Do nothing for free. If it's a good idea and you can stand behind it, do it with a contract which guarantees you at least a basic salary.

Sorry for my bad english. Not native