For one night, "Survivor" became "quitter."

Two contestants quit the CBS game in an episode aired on Wednesday. That's a first for the show, which has had only four others leave of their own choice in a history that goes back a decade.

NaOnka Mixon, a 27-year-old gym teacher from Los Angeles, said relentless rain at the show's Nicaragua setting made her joints ache. Mixon hasn't been a fan favorite, since cameras once caught her stealing food from her fellow players.

She left with one head-shaking act of selfishness. After being part of a winning team in a reward challenge where the prize was a movie screening with popcorn and hot dogs to eat, host Jeff Probst asked for one volunteer to give up the prize in order to give the losers extra rice and a tarp.