Ushi no toki mairi

The Ushi no Toki Mairi (Ox-Hour Shrine Visit) is a historical Japanese ritual said to bring about the death of an unfaithful lover

Procedure

 * 1) Wear the tripod of a brazier upside-down on your head, with three candles attached to it
 * 2) Also wear a mirror hidden underneath their clothing and traditional geta footwear
 * 3) At a time between 1 AM and 3 AM, hammer a nail into a tree at a Shinto shrine
 * 4) Repeat the above action each night for 7 days