It happened to Jamadagni in revenge for the killing of Kaartaveerya by Jamadagni's son Parasurama.  
The Pontianak, a female vampire in Malay legend, performs this act upon itself in order to feed upon its victims.  It happened to Jamadagni in revenge for the killing of Kaartaveerya by Jamadagni's son Parasurama.  A giant named Chrysaor was born after this happened to a monster in Greek myth.  It happened to a god who had been sent as a hostage with the speech-impaired Hoenir, and it also happened to a god of wisdom after his uncle Sani looked at him.  FTP, name this misfortune which befell Medusa and Mimir, as well as Ganesha and Maximilien Robespierre.
The Pontianak, a female vampire in Malay legend, performs this act upon itself in order to feed upon its victims.  
beheading or decapitation (accept equivalents)