The nobody saw test: you dented your friend's bike — and no one was there. Tell them, quietly fix it, or say nothing?
The scene: you borrowed your friend's bike, cornered too fast, and the handlebar smacked the wall. A real dents.
You put the bike back exactly where it was. Nobody saw it happen — not your friend, not the parents.
Everyone votes before hearing the others: tell them · quietly fix it · say nothing.
Then the hard part: explain your vote in one sentence.
Twist: that evening your friend asks the group chat "someone dented my bike" — does anyone change their vote?
Responsibility is what's left after the fear of getting caught is removed
Line up the three doors. Say nothing: the dent stays — and dents get found, because it's their bike and they ride it daily. Tomorrow you own two problems: a dented bike, and a dent in trust. Quietly fix it: the bike heals, but the friend still never hears it from you — and quiet money skips the sorry. Tell first, then fix: costs exactly one awkward minute.
That minute is the whole purchase. The moment you speak, the fear of getting caught switches off — and what you do anyway is the real you. The bike gets fixed with a spanner; trust only gets fixed with the sentence nobody wants to say: that was me, I'm sorry, I'll fix it. Bonus: tellers get loaned things again. Hiders get watched.