A character believes their spouse is having an affair after accidentally taking the wrong phone and reading a cryptic text, leading them to set up a "sting" operation that reveals a completely different secret.
Zoom into vivid moments of the mistake—what the character saw, felt, and thought—rather than staying at a high level of narration. All Stories Are Wrong, but Some Are Useful | Neil Kakkar
A character who is always right is boring. High-stakes mistakes—like a pharmacist misfilling a prescription—create immediate dramatic tension.
A "good" person makes a series of slightly flexible moral choices—like helping a child hide after stealing—only to realize the child stole something far more dangerous than bread.
Don't spend too long on background; get to the "wrong" action or the "inciting incident" quickly.