Have you ever had a child who won't stay on task unless you are there to make sure he does? Are you ever tempted to threaten negative consequences to try to motivate them to stay focused on their school work or chores?
Positive consequences for good choices and self-government motivate children way more than the prospect of negative consequences.
I don't know a parent who wouldn't say, “My child is so smart!” We all recognize the intelligence our children possess. But, what about when they just can't stop themselves from blurting out all that intelligence when Mom is on a phone call, or when adults are having a conversation? Interrupting is a sign of a thinker. Smart people interrupt.