I sold my soul to the Devil – my idea – but I get my soul back – and the Devil gets a pretty good deal too.
I sold my soul to the Devil for everything I want in this life – but I can get out of the bad part if I sign up five other souls for the same deal. And they can do likewise. Like all pyramid schemes, the thing is to get in early before the supply of (eternal) suckers runs low.
“What will it profit a man to gain the whole world and lose his soul? For what will a man give in exchange for his soul?” The answer apparently is at least five other souls. :-[