The difference between child abuse and discipline is like the difference between night and day. The one produces insecure, unhappy and undeveloped children. The other secure, joyful children whose potential is being realized. For those to whom the line seems gray - here are some helpful pointers. There is no Russian Roulette with discipline.
Every transgression has a repercussion.
The child knows ahead of time the consequences and therefore can choose to avoid or indulge the consequence. The child never knows for sure the rules because they change constantly depending on the mood of the parent. Never in Anger. Discipline is given matter of factly, consistently, lovingly and ussally before anyone has time to become angry. If anger does flare - disciplined parents will give themselves 'cool down' time before dealing with the child.