ft Pinepaw and Needlefang at first, Needlefang tells Pinepaw he's worthless n' stuff but when he becomes a warrior he doesn't know who he can vent to and abuse his power so he realizes he's the useless child. or whatever. maybe he thought it's the normal way to teach an apprentice because his own mentor told Needlefang that he's worthless and useless for seeing a kittypet. Song: You're a Useless Child