Picture forty-seven assorted tourists squished into an eighteenfoot-square “floating store” on a riverbank in the middle of the Amazon jungle, squealing as they try to avoid giant water bugs and furry spiders that are fleeing a river oozing through the floorboards, while outside a torrential thunderstorm is pounding on the tin roof of their refuge, denying them any escape. In the middle of this squirming circle, their bravest companion is astounding and thrilling everyone by dancing the sexy “lambada” with Tristo, the cutest of the boatmen, both of them ankle deep in the sloshing water.