Continuity mistake: When Lucy, disguised as the Agent, leaves Mr. Reilly's office for the last time, she suddenly reappears on his balcony overlooking the flowers as he gives dictation to his secretary. When she'd have had to venture out of a window from another part of the office elsewhere. Purely a sight gag for the show, no less.

I Love Lucy (1951)
1 continuity mistake in Ricky Needs an Agent - chronological order
Starring: Lucille Ball, Desi Arnaz, Vivian Vance, William Frawley

Revealing mistake: At the Brown Derby, when Lucy bumps into the waiter causing him to trip and spill the tray all over William Holden, we can see that the waiter's hand is taped to the bottom of the tray for the stunt to be done efficiently. (00:15:15)
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.
More questions & answers from I Love Lucy





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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