"CTO at Loyalsnap (02/23/2017): The CEO rejected me then used the code I wrote in the interview in production. When I pointed this out and said an estimate of the hours I worked on that if he wanted to use it, he told me I would have to sue him to get it. 20 minutes later he venmo’d me the amount and said don’t sue him."

Happens more often then you think. Get 200 approaches on something that team can't get right. Use one.. usually in the backend. Or get inspired and use parts. Ghost person who wrote the code.