Definitely don't sign! It very well may have potential, and you didn't start assuming you'd be building someone else's empire. If one is being built, you shou

Definitely don't sign! It very well may have potential, and you didn't start assuming you'd be building someone else's empire. If one is being built, you should be a founder too. Technically at this point, the copyright ownership on that code is entirely yours. You've simply granted him a license to use it for his original intended purpose (handing it in for school). It may just be that his dad pushed him to do that, but I would be concerned with trust if he's already tried to pull something like that. You do need to be able to trust the other founders. Also, if he or his dad suggest to help work out an agreement between you two, get separate legal counsel. That's a clear conflict of interest (which if his dad doesn't disclose that to you up front, could land him in hot water too). So you do have cards to play, but figure out if you want to play with these people specifically. Ideas are not that hard to come by, as others on here have said -- it's execution that counts.