Rick: Have you acquired creepy specific old stuff from a mysterious antique or thrift store that gives you powers, but fucks with you in unforeseeable ways? Bring it to 'Curse Purge Plus'! I-I use science to un-curse the items for cash, and you get to keep the powers. This guy got mysterious sneakers to make him run faster, but guess what? He would've had to run until he died, making them worthless. I removed the curse, making them worth, like, I don't know, $8 million? See you at the Olympics. This eerily intelligent doll was threatening to murder its family. Now it does their taxes.
Doll: Everything's deductible.
Rick: Don't pay for cool stuff with your soul. Pay for it with money. You know, like how every store in the world works?