i present to you callisto, an alien from the moon of the same name. he was a king before he made it to earth, but he just acts loony now. callisto has a horde of shiny things, whether precious or not. if he sees something sparkly or shiny, he's gonna want it. let's say you had a cheap silver ring. he'll do virtually anything to get that from you, and as long as you keep supplying somewhat shiny things, he'll keep doing favors.