From the game The Legend of Zelda: Ocarina of Time for the Nintendo 64.
Go to Lon Lon Ranch as young Link. Go to Epona and play Epona's Song. Now, run outside of the fenced part of the ranch, and make sure that she's following you. Go at least a quarter of the way around the ranch. Now, you can let her stop following you. She will try to run back to Malon, but will be blocked by the fence. She will keep on running into the fence forever and ever. Playing Epona's song again won't help, you have to leave and then return to the area to fix her. If you don't get her to follow you far enough, she will run into the fence and slowly slide to the entrance until she gets to it and then runs through it.
Submitted by: Connie