I want to run an adventure in which the heroes encounter a bronze dragon. She wants to reassure them that she's not going to eat them, so she says: "Don't worry, I'm a stupidtarian!" (An eater of only stupid things, ie, nonsapient animals.)
What's a better word than "stupidtarian"? A good word should have an intuitively obvious definition (meaning the characters don't have to immediately ask the dragon to define the word), and also should sound less dumb than "stupidtarian".