Less than 30 minutes into the 4-hour film, Sanford could tell he was going to hate the movie. He considered getting up and walking out but felt compelled to sit through the whole movie because he had already spent his money on the ticket. This illustrates

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Sanford's decision to stay and watch the movie despite not enjoying it because he had already paid for the ticket is an example of the sunk cost principle. This principle suggests that individuals continue a behavior or endeavor as a result of previously invested resources (time, money, or effort), even if they are not enjoying or benefiting from it.

Less Than 30 Minutes into the 4-Hour Film, Sanford Could