I’ll go first. Mine is the instant knockout drug. Like Dexter’s intramuscular injection that causes someone to immediately lose consciousness. Or in the movie Split where there’s the aerosol spray in your face that makes you instantly unconscious. Or pretty much any time someone uses chloroform.
I have two.
When a woman’s child is threatened she goes stupid and hysterical. Like in Lost when she just keeps screaming “my baby!”. Yes parents get highly motivated when their child is in danger but they don’t get stupid and lose agency.
In any setting where rope would be rare and expensive and they just cut the bonds instead of untying them. It’s understandable when time is critical like a prisoner break or the building is on fire. But in a society where someone spent a week making that rope and you just cut it instead of taking 5 min to preserve the rope.
How many shows are you watching which have rope shortening?