His first appearance is in the episode "Blood Under the Skin," where Finn and Jake visit his store. Finn asks for some armor to make himself seem tough, but Choose Goose keeps teasing and embarrassing him. Finally, Finn tells him to get serious and suggest some real armor. But when Choose Goose does, he asks for Jake's head as payment, and Finn rejects it. Then Choose Goose gives him a scroll with a poem that is supposed to lead them to where the most "chk chk" armor is, but they have to figure out what the poem means.