The drainage pipes for the shower and sink run down and out of the hotel room and provide water for cacti and scrub growing on the side of the hill below the building. The shower has a rubber disk a quarter of an inch thick that covers the drain hole on the floor of the shower perfectly. The sink has one of a corresponding size. Instructions in the room recommend covering the drains with the rubber disks when the water is not being run. Ample life forms here, low centers of gravity, some with no legs others with many. These pipes no doubt, are highways of opportunity.