If this story doesn't have the makings of a "River Monsters" episode in it, I don't know what does: A college student teaching English in South America has a day off and decides fishing in Lake Titicaca might be fun. Next thing she knows, her finger tip is hanging on by a few shreds of meat because no one told her piranhas have teeth. Eighteen hours from the nearest hospital, she opts to just wrap her finger in a bandage and hope for the best. Two days later, a nasty infection has her in severe pain. When she finally makes it to the hospital, doctors put her on an antibiotic drip and spend four more days fighting to save her finger. But what happened to the piranha?