If it's a baby, pinch the nose shut for about 10 seconds. Since they're mouthbreathers, they'll choke and be too busy gasping for air to cry again. If they're small children, ignore them once the basic needs of life have been met; they just want attention and must learn to soothe themselves. If children, teens, or adults, lay down an ultimatum. If they violate this ultimatum, deliver a bowel-quaking beating.