I tried a writing prompt about a character who can't lie and got a surprise
I used the prompt 'write about someone who is physically unable to tell a lie' for a short story last week, and my main character ended up confessing a secret in the first paragraph, which completely changed the plot I had planned. It taught me that a simple constraint can force way more interesting choices than I would have made on my own. Has anyone else had a prompt completely derail their original story idea in a good way?
My last prompt was about a time traveler fixing one small typo. I spent three hours outlining a complex causality chain, but the story just wrote itself as a quiet moment where nothing really changed. Sometimes the constraint just makes you write the boring, obvious version.