"Well I stand corrected. As this site says above - You can chant for whatever you want, wherever you want, for however long you want. Our neighbor's dog was always sticking his head over the fence and annoying us. Someone gave us a card that said Nam-myoho-renge-kyo on it and wanted my wife and I to go to a SGI meeting. We said no thanks. Then one day, we had some friends come over for a BBQ, and the dog is sticking his head over the fence and barking. We still had the card with the chant on it, so I said to my wife, "Let's chant, for this to stop, what could it hurt." We chanted for two hours in the morning and two hours in the evening to get the dog to stop annoying us. A week later, an ambulance goes to our neighbor's house. The girlfriend hung herself. The girlfriend left the house to her son, not the boyfriend. So the boyfriend left and took the dog with him. No more dog! Chanting really works!"