Yo, there was a whole plot point cut from an early draft of Return of the Jedi, possibly written in when David Lynch (!) was a potential director, where the ghost of Obi-wan urged Luke to never go out into the Endor night. Some people say it was a monologue that rivaled Quint's speech about the USS Indianapolis in Jaws. It was nixed because Alec Guinness objected to associating such a harrowing tale to "fucking muppets".
PS: None of that is true, except the David Lynch part.
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