She almost drowned on set
In the Lucy’s Italian Movie episode of I Love Lucy, Lucy helps stomp grapes with her feet to help prepare wine for what she thinks is a minor role in a movie. What made this scene funny was how she got into a fight with another grape-stomping worker, and more hilarity ensued. However, only hardcore fans know what was actually going on.
The fight between Lucy and the worker, which took place in front of a live audience, wasn’t in the script. When Lucy accidentally hit the other woman’s head as she accidentally slipped into the vat, the worker kept her foot on Lucy’s throat. She almost dried in a tub of stomped grapes on set!