Danny Devito says he almost drowned during filming. At the end of the episode when the gang are all holding hands fully submerged underwater, Danny devito was too buoyant and would not sink to the bottom so they had to put weights on him to keep him down. When it came time to rise to the surface to get air he couldn't because of the weights. He said " DeVito said, "It was a good experience. I have lived a good life and it flashed before my eyes in that scene.""