The mafia oath frames its own irrevocability through destruction metaphors

Evidence

A solemn oath binds each associate to the others. It is taken in the presence of three members, one of whom, having tied a thread around the [new member’s] index finger, pierces it and lets a few drops of blood fall onto a sacred image, which is then burned and its ashes scattered to the wind… According to a script seized by the police, the wording of the oath appears to be the following: “[swear on my honor to be faithful to the Fratellanza just as the Fratellanza is faithful to me, and as this saint and these drops of my blood burn, so will I shed all my blood for the Fratellanza, and as this ash and this blood cannot return to their [original] state, so I cannot leave the Fratellanza.” — Diego Gambetta, The Sicilian Mafia The Business of…, 703

Categorization

• XREF: The ‘ash and blood cannot return to original state, so I cannot leave’ formula is a textbook credible-commitment device; ties directly to Schelling and to Milgrom-et-al.’s private-judge enforcement, the reader’s stated framework.
• DEFINE: Defines the logical mechanism by which the oath aims to bind: destroying the physical token proves and constitutes the irrevocability of the bond.
• DEEPTHINKING: The oath converts a metaphor (irrevocable commitment) into a physical proof: by literally destroying the tokens, the ritual makes exit unthinkable in a way that surpasses mere promise. This is the materialization of a credible-commitment threat.