Getting Your Own Back?

A rooster, with a knife attached to its leg, being prepared for a cockfight in India, reportedly fatally injured its owner (https://www.theguardian.com/world/2021/feb/27/rooster-fitted-with-blade-for-cockfight-kills-its-owner-in-india). The bird lacerated its owner's, groin causing massive loss of blood. Cockfighting is an unpleasant activity and fights can be fatal to the opponent, when just the talons are used. These male birds normally fight as a form of sexual competition.