They came to a place where an old buffalo stood sharpening his horns against a boulder. The man asked the buffalo, "Grandfather, what are you doing?" The buffalo said, "Stone Boy has killed a beloved child and he has got away and we are going to follow and try to find him. I want to do something to help if only to tear down the lodge-poles!" The man approached and said, "Grandfather, I am Stone Boy himself!" He pushed the buffalo off the bank and jumped upon him until he had crushed his ribs.

Mythology of the Oglala Dakota, p. 430