Ok, back in February, my friend begged me to place $100 bet on the Giants on an online gambling site. He didn't want to register and use his own money, so he had me put up $100 of my own. I deposited $100 and decided to play blackjack and made it into $400. The Giants won making that $400 into $1200. I went on to lose the $1200, but now my "friend" is telling me that I owe him the $1200. Does he honestly have any claim to that?