Lucy and Viv are stuck in the shower as the water continually rises. Lucille Ball later stated that she nearly drowned during the filming of this scene, when she went to the bottom and found herself unable turn herself upright. Vivian Vance realized she was in trouble, and pulled Lucy up by her hair. Vance ad-libbed until Lucy could catch her breath and resume her lines. The near-disastrous moment was left in, and is widely considered the funniest of the show.