A rich man approaches you and is says that he has an unusual sense of humor and he'd like to make you an offer. Whenever you die, whatever day in whatever year that is, he would like to see you buried in a furry costume. The costume will be of a sexy cow with enormous obscene udders. You'd be laid in the casket and all in attendance of your funeral will probably assume the worst, and you'll be buried in that outfit. You'll probably outlive him, so if you agree to put this clause in your will, his estate will make sure that his wishes are enforced and secretly recorded. As incentive for such a thing, he'll pay you $15,000 now and he'll pay for all your funeral/casket costs, so your family won't have to. He'll have his best lawyers write up the contract and it'll be ironclad and unable to be broken once you sign. Do you sign it?
You manage to talk some sense into him and he's willing to give you a second deal, if you didn't like the first. For $5,000 up front now, you'll be buried, inexplicably, in a Darth Vader costume. All other aspects of the deal remain the same, just that the money given and the costume worn are different. Would you rather do this deal?