> I found her sitting on the toilet with the underwater seal drain on a high shelf. All the water and air had syphoned out of the bottle into the chest. The crisis resolved when I placed the underwater seal drain on the floor—draining the water back from the chest to the bottle. The air bubbled out of her chest when she coughed. After a few minutes she was almost back to normal, but exhaustion precluded the completion of a third full medical report.