It is my understanding that if you lead a rhinocerous into your home, and if he were to bump his head on the door when you bring him in, that you have to hit him on the head with a blunt object until he's dead--then eat him.
Also, if you were to give money to a wino, and if he were to use this money for something detrimental to his health, like wine, then he too would require a deadly head beating, and eating.
This all makes almost too much sense.