Sushi chef Jonas takes a hike, while elder statesman Tarzan continues to go off the deep end on this week's episode.By Josh Wigler "Survivor: One World" contestant Tarzan Photo: CBS Tarzan is not only king of the jungle — he's also king of the "poop pants." He certainly wouldn't own that title, but his companions on newly merged tribe Tikiano know better, having seen the 64-year-old plastic surgeon's dirty underwear up close, personal and in their precious pot of boiling water.