Visible crew/equipment: At the start, when Lucy pulls into the "gas station" the thin cable pulling the Pontiac is visible in front of the car, and when Ethel walks in front of the car note that the actress quickly glances down and steps over it, just as she says they're lost. Additionally, the glass windshield and rearview mirror are gone.

I Love Lucy (1951)
1 mistake in Tennessee Bound - chronological order
Starring: Lucille Ball, Desi Arnaz, Vivian Vance, William Frawley
Ricky Ricardo: What's the matter with you? Are you crazy or something?
Trivia: Lucy, Ricky, Ethel, and Fred all do the impressions of Maurice Chevalier. Thirty-six years later, the same impression is done in the 11th episode of The Simpsons.
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Answer: There is no reason. It's a just a silly plot device, typical of the era. Women characters were often portrayed as making uninformed assumptions or decisions.
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