Dramatic gestures are a part of Yakuza life. Yubitsume or the cutting off of one’s finger, is a form of penance or apology. For a first offence, the tip of the left little finger is cut off and the severed portion given to the oyabun. Further offences may result in more fingers being cut off. Historically this would gradually weaken the offender’s sword grip, forcing them to rely on their comrade more and learn from that. Today the practice is unpopular as it clearly identifies Yakuza members to the police, though prosthetic fingers are often used to avoid detection.
Seppuku is a traditionally samurai practice that still occurs occasionally – though far more in Yakuza movies than real life. Literally ‘stomach cutting’ it is a ritual form of suicide by disembowelment that is not exclusive to the Yakuza and has been performed by disgraced officials, politicians, and even shamed celebrities. It is traditionally performed with a short sword, slicing open the stomach and then turning the blade upwards to ensure a fatal wound.