Fan Casting I Gave My Word in Sort by Tropes

Any dialog to indicate your deep offense that someone says that you could do something that you promised not to, or refrain from something you promised to do — or actually tries to do something you had promised would not happen. (You are, after all, "a man of your word.") Bonus points if no one would realize you had broken it: if you had given it to a dying man, if you gave the promise without thinking of the consequences, or no one would believe the character you gave it to. A Last Request for some reason is actually an especially binding promise — as is a vow made to the already dead.