Movies
It's awfully easy to lie when you know that you're trusted implicitly. So very easy, and so very degrading.
— Laura • Brief Encounter

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Being fully trusted can make deceiving someone weirdly effortless, because they never suspect anything. The speaker sees that ease as part of the problem: the very lack of resistance makes lying feel cheap and shameful rather than clever.
Context reviewed